Question

1).
25=4+3(t+2)

2).
The S.P. of chair is Rs.522 . A shopkeeper made a profit of 46 percent .Find C.P.

3).
Find rate of interest if principle is Rs.1560,time is 3 years,simple interest is Rs. 585.

4).
Find the number if two fifth of a number is 3 more than 7.

5).
A man is 26 years older than his son. In 5 years his age will be 70. What are their present ages?

6).
Find
3
81×7 ×1000
------------------
3 4
10 ×3 ×7

Answer 1

25=7t+14

25_14=7t

31/7=t

Answer 2

1).25=4+3(t+2)

25=4+3*t+3*2

25=4+3t+6

25=4+6+3t

25=10+3t

25-10=3t

15=3t

15/3=t

5=t