Question

find the number which when decreased by 15% becomes 1360

Answer 1

Solutions :-


Let the certain number be x

Find the value of the certain number :-

A/q

=> x - 15% of x = 1360
=> x - 0.15 × x = 1360
=> x - 0.15x = 1360
=> 0.85x = 1360
=> x = 1360/0.85 = 1600


Now,
Verification :
Putting the value of x in the question :-

=> 1600 - 15% of 1600 = 1360
=> 1600 - 0.15 × 1600 = 1360
=> 1600 - 240 = 1360
=> 1360 = 1360

R.H.S = L.H.S
verified ✔


Hence,
The number is 1600

Answer 2

x-x[15/100] = 1360

100x-15x/100 = 1360

85x = 136000

x = 136000/85

x = 1600