Question No. 84 Riaz's age after 15 years will be 5 times his age 5 years back, what is the present age of Riaz? A. 15 B. 14 C. 12 D. 10 Sindh Police morning shift / Evening shift Driver Constable test Paper 5-11-2023 Iba TEST Sukkur STS

 Sindh Police morning shift / Evening shift Driver Constable test Paper 5-11-2023 Iba TEST Sukkur STS past paper

Question No. 

84. Riaz's age after 15 years will be 5 times his age 5 years back, what is the present age of Riaz?

A. 15

B. 14

C. 12

D. 10

Solution :

       Riaz's age after 15 years ( Mean add R + 15)

 will be 5 times  ( Mean 5 Multply )

 

5 years back ( Mean  is R - 5)

so Equation Is 

R + 15 =  5 x (   R - 5 )

R + 15  = 5R - 25

15 = 5R - R -25

15 + 25 = 4R

40 = 4R

40/4 = R

10 = R Ans