AD Practice SET – 1
Age & Digits: Level 1
1.
John is 15 years old. How old will he be in 7 years?
Solution (B):
\( 15 + 7 = 22 \).
2.
The sum of the digits of the number 57 is:
Solution (C):
\( 5 + 7 = 12 \).
3.
Mary is 4 years older than Tom. If Tom is 10, how old is Mary?
Solution (A):
\( \text{Mary} = \text{Tom} + 4 = 10 + 4 = 14 \).
4.
What is the product of the digits of the number 34?
Solution (D):
\( 3 \times 4 = 12 \).
5.
Five years ago, Sarah was 20. How old is she now?
Solution (B):
\( \text{Current} = \text{Past} + 5 = 20 + 5 = 25 \).
6.
A father is 3 times as old as his son. If the son is 10, how old is the father?
Solution (E):
\( 3 \times 10 = 30 \).
7.
Which of the following is a two-digit number whose digits sum to 5?
Solution (C):
\( 2 + 3 = 5 \).
(A: 10, B: 6, D: 6, E: 7).
8.
The sum of the ages of two brothers is 20. If one is 8, how old is the other?
Solution (A):
\( 20 – 8 = 12 \).
9.
In the number 543, what is the value of the digit 5?
Solution (D):
The digit 5 is in the hundreds place, so its value is \(5 \times 100 = 500\).
10.
If you reverse the digits of 12, what is the new number?
Solution (B):
Reversing the digits of 1 and 2 gives 21.
Score: 0 / 0