Question

Mathematics for Class 7
13. Sonal went to school for 21
to school for 219 days in a full year. If her attendance is 75%. find the number of
davs on which the school was open.
14. 3% commission on the sale of a
42660. What is the total value of
ssion on the sale of a property amounts to
the property?
15. In an election, there were two ca
20 election there were to candidates A and B The total number of voters 1
Cucy was 60000 and 80% of the total votes were polled If 60% of the polled yotes
were cast in favour of A. how many votes were received by B?
18. The price of a shirt is reduced by 12% in a dis
1188. hind
is reduced by 12% in a discount sale. If its present price is
its original price.
The price of a sweater is increased by 8%. If its increased price is
sed price is * 1566. find the
original price
18. After spending 80% of his income and giving 10% of the relle
mus income and giving 10% of the remainder in a charity, a man has
* 46260 left with him. Find his income.
19. Anumber is increased by 20% and the increased number is decreased
u by 20% and the increased number is decreased by 20%. Find the net
increase or decrease per cent.
20. The salary of an officer is increased by 20%. By what percentage should the new salary be
reduced to restore the original salary?
21. A property dealer charges commission at the rate of 2% on the first * 200000. 1% on the
next 200000 and 0.5% on the remaining price. Find his commission on the property that
has been sold for 540000.
22. Nikhil's income is 20% less than that of Akhil. How much per cent is Akhil's income more
than that of Nikhil's?
3. John's income is 20% more than that of Mr Thomas. How much per cent is the income of
Mr Thomas less than that of John?
5. The value of a machine denreciates 100 m​

Answer 1

Plzz post one by one. Happy raksha bandhan

13) Let school be opened for x days = 100%

Sonal went for 21 days = 75%

Total days school was opened =( 21/75) ×100

= 28.

Plzz follow me