NCERT Class 7 Mathematics Model Paper 1 Questions and Answers Part 3

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24. Find x, if

and are equivalent numbers, find k.

Ans: Equating the powers when bases are same.

Thus,

25. Out of 15000 voters in a constituency 60% voted. Find the percentage of voters who did not vote.

Find how many persons who actually did not vote?

Ans: Total voters 15000

Voted

If 60% of voters voted, then not voted

Percentage of persons not voted

26. Divide and find the quotient.

If Meena gives an interest of `45 for one year at 9% rate p.a. What is the sum she has borrowed?

Ans:

Thus quotient

S.I. = ` 45

T = 1 year

R = 9%

P = ?

She borrowed

Section - C

27. The diagram shows 2 isosceles triangles. What is the sum of a and b, if and

Ans: Let

Since,

In ,