AFCAT I 23 Jan 2025 Shift 2 Paper

If N is divided into two part in the ratio a:b, then
First part =N×a∕(a+b)
Second part =N×b∕(a+b)
Calculation:
Let the quantity of three varieties of wheat be 3x,4x and 2 x and cost of third variety of wheat be Rs. a/kg
According to the question,
‌⇒(3x×30)+(4x×35)+(2x×a)=34×(3x+4x+2x)
‌⇒90x+140x+2xa=306x
‌⇒2xa=76x
‌⇒a=38
∴ The cost of the third variety of wheat is Rs. 38∕kg