• # question_answer 24) Cost of 5 kg of wheat is Rs. 30.50. (a) What will be the cost of 8 kg of wheat? (b) What quantity of wheat can be purchased in Rs. 61?

(a) Here, the quantity of wheat is known and cost is unknown. Given, cost of 5 kg of wheat = Rs. 30.50 $\therefore$ Cost of 1 kg of wheat = Rs. $\frac{30.50}{5}=$ Rs. 6.10 $\therefore$ Cost of 8 kg of wheat = Rs. $6.10\times 8=$ Rs. 48.80                          Hence, the Cost of 8 kg of wheat is Rs. 48.80. (b) Here, the cost of wheat is known and quantity of wheat is unknown. Given, Rs. 30.50 quantity of wheat that can be purchased = 5 kg            $\therefore$In Rs. 1, quantity of wheat that can be purchased $=\frac{5}{30.50}kg=\frac{5\times 10}{305}kg=\frac{50}{305}kg$ [multiplying numerator and denominator both by 10] $\therefore$ In Rs. 61, quantity of wheat that can be purchased Hence, 10 kg wheat can be purchased in Rs. 61.