Question

10. (i) If 16 ²by ³ %of a number is 25, find the number.
(ii) If 13.25% of a number is 159, find the number.
11. (i) Increase the number 60 by 30%.
(ii) Decrease the number 750 by 10%.
12. (i) What number when increased by 15% becomes 299?
(ii) On decreasing a number by 18%, it becomes 697. Find the number.
13. Mr. Khanna spent 83% of his salary and saved *1870. Calculate his monthly salary.
14. In a school, 38% of the students are girls. If the number of boys is 1023, find the total
strength of the school.​

Answer 1

Answer:

10(ii)

Step-by-step explanation:

Let,number=X

Then,

X×13.25/100=159

=X×1325/10000=159

=X=159×10000/1325

=1200