Four electronic devices make a beep after every 30 min, 1 h, \[1\frac{1}{2}\text{h}\] and 1 h 45 min respectively. All the devices beeped together at 12 noon. At what time will they beep together again?
The volume of a sphere is \[\frac{88}{21}\times {{(14)}^{3}}\text{c}{{\text{m}}^{\text{3}}}\text{.}\]The curved surface of the sphere is \[\left( \text{Take}\,\,\pi =\frac{22}{7} \right)\]
A certain number of persons can complete a piece of work in 55 days. If there were 6 persons more, the work could be finished in 11 days less. How persons were originally there?
The difference between \[\frac{3}{5}\text{th}\] of \[\frac{2}{3}\text{rd}\] of a number \[\frac{2}{5}\text{th}\] of \[\frac{1}{4}\text{th}\] of the same number is 288. What is the number?
A district has 6400 inhabitants. If the population increases at the rate of \[2\frac{1}{2}%\]per annum, the number of inhabitants at the end of 3 yr will be
A boat goes 6 km an hour in still water, but takes thrice as much time in going the same distance against the current. The speed of the current (In km/h) is
A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days C alone in 50 days, then B alone could do the work in
A man lands Rs. 1200 in four sums. If he gets 5% for Rs. 300, 6% for Rs. 350 and 6.5% for Rs. 400. What percentage must be get for the remainder, if the average interest is 6.5%?
A tap can fill a tank in 6 h. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
A man spends \[\frac{1}{3}\]of his income on food, \[\frac{2}{5}\]of his income on house rent and \[\frac{1}{5}\]of his income on clothes. If he still has Rs. 400 left with him, his income is
Each member of a picnic party contributed twice as many rupees as the total number of members and the total collection was Rs. 3042. The number of members present in the party was
The average noon temperature for Monday, Tuesday and Wednesday was \[53{}^\circ \]and for Tuesday, Wednesday and Thursday it was \[56{}^\circ .\]If the noon temperature on Thursday was 60°. Find the noon temperature on Monday.
A lends Rs. 2500 to B and a certain sum to C at the same time at 7% annual simple interest. If after 4 yr, A altogether receives Rs. 1120 as interest from B and C, the sum lent to C is
Rs. 3 400 is divided among A, B, C, D in such a way that the share of A and B, B and C, C and D may be as 2 : 3, 4 : 3 and 2 : 3 respectively. The sum of shares of Band D is
A candidate secured 30% marks in an examination and failed by 6 marks. Another secured 40% marks and got 6 marks more than the bare minimum to pass. The maximum marks are
A bag contains Rs. 90 in coins of denominations of 50 paise, 25 paise and 10 paise. If coins of 50 paise, 25 paise and 10 paise are in the ratio 2 : 3 : 5, then the number of 25 paise coins in the bag is
A trader sells two articles at Rs. 6000 each. He makes a profit of 20% in the sale of the first article and a loss of 20% in the sale of the second article. What is his net gain or loss per cent?
A can do a piece of work in 60 days. He works for 15 days and then B alone finishes the remaining work in 30 days. The two together can finish the work in
A started a business with Rs. 3200. After some time B joined him with Rs. 4800. If at the end of 1 yr they got equal profit, after how many month did B join?
Out of 10 teachers of a school, one teacher retire and in his place, a new teacher of age 25 yr joins. As a result, average age of teachers reduces by 3 yr. The age of the retired teacher is
In an election between two candidates, 75% of the voters cast their votes, out of which 2% votes were declared invalid. A candidates got 9261 votes which were 75% of the valid votes. The total number of voters enrolled in that election was
In an examination 34% failed in Mathematics and 42% failed in English. If 20% failed in both the subjects, the percentage of students who passed in both subjects was
The ratio of the number of boys to that of girls in a school is 4 : 1 If 75% of boys and 70% of the girls are scholarship holders, then the percentage of students who do not get scholarship is
Four equal sized maximum circular plates are cut off from a square paper sheet of area 784 sq cm. The circumference of each plate is \[\left( \text{Take}\,\,\pi =\frac{22}{7} \right)\]
A soldier goes to a warfield and runs in the following manner. From the starting point, he goes West 25 m, then due North 60 m, then due East 80 m and finally due South 12 cm. The distance between the starting point and the finishing point is
If two circles are such that the centre of one lies on the circumference of the other, then the ratio of the common chord of the two circles to the radius of any one of the circles is
The length of the shadow of a person s cm tall when the angle of elevation of the sun is \[\alpha \] is p cm. It is q cm, when the angle of elevation of the sun is \[\beta .\]Which one of the following is correct, when \[\beta =3\,\,\alpha ?\]
The middle points of the parallel sides AB and CD of a parallelogram ABCD are P and Q, respectively. If AQ and CP divide the diagonal BD into three parts BX, XY and YD, then which one of the following is correct?
A boat covers a distance of 30 km in 2 - h running downstream. While returning, it covers the same distance in\[3\frac{3}{4}\text{h}.\] What is the speed of the boat in still water?
A trader marks 10% higher than the cost price. He gives a discount of 10% on the marked price. In this kind of sales how much per cent does the trader gain or loss?
A train passes two persons walking in the same direction in which the train is going. These persons are walking at the rate of 3 km/h and 5 km/h respectively and the train passes them completely in 10 s and 11s respectively. The speed of the train is
A and B rent a pasture for 10 months. A puts in 100 cows for 8 months. How many can B put in for the remaining 2 months, if he pays half as much again as A?
If the compound interest on a sum of money for 3 yr at the rate of 5% per annum is Rs. 252.20, the simple interest on the same sum at the same rate and for the same time is
The average of a collection of 20 measurements was calculated to be 56 cm. But later it was found that a mistake had occurred in one of the measurements which was recorded as 64 cm, but should have been 61 cm. The correct average must be
If the duty on an article is reduced by 40% of its present rate, by how much per cent must its consumption increase in order that the revenue remains unaltered?
A television and a refrigerator were sold for Rs. 1200 each. If the television was sold at a loss of 20% of the cost and the refrigerator at a gain of 20% of the cost, the entire transaction resulted in
A person sells a table at a profit of 10% If he had bought the table at 5% less cost and sold for Rs. 80 more, he would have gained 20%. The cost price of the table is
A and B can do a piece of work in 28 days and 35 days respectively. They began to work together but A leaves after sometime and B completed remaining work in 17 days. After how many days did A leave?
From a packet of 250 cards numbered as 1 to 200, some cards are picked randomly. What is the probability of picking a number which is the perfect cube?
Rs. 180 are to be divided among 66 persons (men and women). The ratio of the total amount of money received by men and women is 5 : 4 But the ratio of the money received by each man and woman is 3 : 2. The number of men is
Directions: Study the following table carefully and answer the questions given below.
Production of five different kinds of consumer goods of a company (in lakhs)
Year
P
Q
R
S
T
Total
1994
14
18
27
34
26
119
1995
18
24
25
32
28
127
1996
21
22
24
36
27
130
1997
24
32
34
25
29
144
1998
26
39
32
21
27
145
1999
32
46
31
24
25
158
What is approximate percentage of the total production of P type goods in the years 1996 and 1597 taken together to the total production of R type of goods in the year1998?