Cost of 5 kg of wheat is ₹ 91.50. 

(a) What will be the cost of 8 kg of wheat? 

(b) What quantity of wheat can be purchased in ₹ 183?

5 kg wheat = ₹ 91.50. 

(a) 1 kg wheat = $\frac{91.50}{5} = 18.3$

8 kg wheat = $18.3 \times 8 =146.4$

Therefore,

Cost of 8 kg wheat = ₹ 146.4

(b)

5 kg wheat = ₹ 91.50. 

 ₹ 1 = $\frac{5}{91.50} = 0.05464$ kg

Quantity of wheat can be purchased in ₹ 183 = $183 \times 0.05464 = 9.99912$kg

Therefore,

Quantity of wheat that can be purchased in ₹ 183 = 10 kg