Question

8. Anita spends 65% of her salary and the rest she saves. She saves 2940 per month. What is her
monthly salary?
9. In a class, there are 60% boys and the girls are 18 in number. How many students are there in
the class?
10.The population of a town increases by 6% annually. The present population is 17490. What
was it a year ago?
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Answer 1

Answer:

Let the Anita monthly salary be x

then 65%of x

= 65/100*x

= 13x/20

x-13x/20=2940

= 7x/20=2940

= 7x=58800

= x=8400

So, Anita monthly salary is 8400

Answer 2

Answer:

$x \times 65 \div 100 = x - 2940 \\ 65x \div 100 = x - 2940 \\ 65x = 100x - 294000 \\ 294000 = 100x - 65x \\ x = 294000 \div 35 \\ x = 8400$

salary is Rs.8400