Explanation

Let the son's age be x.

Then the father's age is 5x.

In 15 years, the son's age will be x+15

the father's age will be 5x+15.

According to the problem, in 15 years the father will be twice as old as his son:

                                              5x+15 = 2(x+15)

                                                      3x = 15

                                                           x = 5

Therefore, the son is currently 5 years old. 

The father's current age is 5 times that, which is 25 years old.

SH19-8-2023

Explanation

Here the value of 1 square yard to feet is 9 sq ft.

For example, if you want to convert 2 square yards into square feet,

you need to multiply 2 with 9, i.e.,

2 × 9 = 18 square feet.

SH19-8-2023

Explanation

10+10=20

Explanation

A boy walked for =1/2 hours

 got a bus for= 1/3  hours

Total time = 1/2+1/3

                 = (2+3)/6 

                   =5/6

Sh18-8-2023

Explanation

Give the next two numbers in the following series 23 30 21,33,19,36 17,39

There is subtraction and addition of 2 and 3 consecutive numbers

Sh18-8-2023

Explanation

Alzheimer's disease is a disease that affects the brain and nervous system.

It happens when nerve cells in the brain die.

ND12_8_2023

Explanation

SH14-8-2023

Explanation

Number of the population who read the magazine

= (45 + 55 + 40) – (30 + 25 +15) + 10

= 140 – 70 + 10

= 80%

Number of the population who do not read magazines = 100 – 80 = 20%

Sh14-8-2023

Explanation

SH14-8-2023

Explanation

SH14-8-2023