Numbers Aptitude Test Paper 5

21) Find the product of face value and place value of 4 in 234567.

1. 12000
2. 14000
3. 16000
4. 18000

Explanation:

Place value of 4 in 274567 is 4 * 1000 = 4000

Face value of 4 in 274567 is = 4

∴The required product = 4000 x 4 = 16000

22) Find the value of √(6+√(6+√(6+√(6+.......n

1. 6
2. √6
3. 3
4. 2√3

Explanation:
In case of same type of root values, addition break the given number in a consecutive order, the largest number will be the answer.
i.e., the number is 6, and the consecutive order of six: 2*3, so the answer is 3.

23) Find the value of √(12-√(12-√(12-√(12-.....n

1. 3
2. 2√2
3. 4
4. 6√6

Explanation:
In case of same type of root values, subtraction breaks the given number in a consecutive order, so the smallest number will be the answer.
i.e., the number is 12, and the consecutive order of six: 4*3

24) Find the value of √(7-√(7-√(7-....n.

1. √7
2. (√149)-1/7
3. 7
4. ((√29-1)/2)

Explanation:
When numbers can't be broken, then we use this formula:
((√4x+1)-1)/2, where x is the given number.
i.e., the number is 7
((√4*7+1)-1)/2

25) Find the value of √(8√(8√(8√(8√(8√(8√(8.....n.

1. 4
2. 2
3. √64
4. 8

Solution:
In case of same type of root values multiplication, the number itself will be the answer
i.e., the number is 8.