Note: Answers to all questions are given at the end of this exercise.

**Take the value of π as 3 1/7 where necessary.
Question No. 1:
If V=1/3 Ah find V when A=43, and h=6**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 2:
__

**If F=9C/5 + 32 find F when c=30.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 3:
__

**If S=4πr² find S when r=10 1/2**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 4:
__

**If T=π(R²-r²), find T when R=4 and r=3.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 5:
__

**a=y²-xz/5 Find a when x=4 and y=7 and z=6.**

**Note: Answers to all questions are given at the end of this exercise.**

__Question No. 6:
__

**If K=x+y/3 find x when K=12 and y=4.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 7:
__

**If t=v-u/a find a when t=1, u=1 2/3 and v=3 1/2.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 8:
__

**If U=π(r+n) find r when U=16 1/2 and h=2 3/4.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 9:
__

**If v²=u²+2gs find s where v=20, u=10 and g=10.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 10:
__

**If m/x+q=N, find q when m=9, x=2 and N=1 4/5.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 11:
__

**If n-y=4y-n/m find n when y=3 and m=7.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 12:
__

**If a/b + e = c/b find c when a=4, b=12 and e=-1/6.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 13:
__

**If y+b= ay+C/b find C when y=12, a=14 and b=3.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 14:
__

**If 1/a = 1/b + 1/c + 1/d find c when a=2, b=3 and d=5.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 15:
__

**If m(ny-x²)/z + n =5n. Find y when n=4, x=2, m=6 and z=8.**

Note: Answers to all questions are given at the end of this exercise.

__Question No. 16:
__

**If C=a/b – d-e/f-d find f when a=2, b=3, c=4, d=6 and e=76.**

**Answers**

**(from left to right)**

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