Basic Math

Q991: If x + 8 = 4, then x + 4 = ___?

A. 1
B. None of these
C. 2
D. 0

Q992: Solve 12 / 20 =?

A. 24
B. 0.6
C. 2.4
D. 6

Q993: 40 × 5.1 = ____?

A. 114
B. 204
C. 110
D. 104

Q994: If a binary relation is defines as r = {(4,5), (5,4), (5,4), (5,6),(6,4)}, then domain of R is ?

A. {4,6}
B. None of these
C. {4,5}
D. {4,5,6}

Explanation

The domain of a relation is the set of all first elements in the ordered pairs. For the relation R:

The first elements are

4, 5, and 6

So, the domain of 𝑅 is {4,5,6}.

Q995: 8.9 + 2 - 7 * = ?

A. -10.1
B. 11.9
C. -11
D. 10.1

Q996: If 18 men can eat 20 kg of rice in 3 days how long with 6 men take to eat 40 kg of rice?

A. 20 days
B. 18 days
C. 16 days
D. 14 days

Q997: if 37 of a number is 990.86 what will be approximately 19% of that number will be

A. 500
B. 600
C. 700
D. 800

Q998: The half-interval method in numerical analysis is also known as?

A. Bisection method
B. Newton-Raphson method
C. None of these
D. Taylor's method

Q999: 839 – 680 = _____?

A. 159
B. 129
C. 149
D. 139

Q1000: 5 men and 2 boys working together can do four times as much work as a man and a boy. Working capacities of a woman and a boy are in the ratio:

A. 1 : 3
B. 6 : 7
C. 2 : 1
D. 1 : 2

Explanation

We are given:

5 men and 2 boys = 4 times (1 man + 1 boy)

Step 1: Let work capacities be M (man) and B (boy)

Work done by 5M + 2B = 4 (M + B)
Expanding: $5 M + 2 B = 4 M + 4 B$
Rearranging: $5 M - 4 M = 4 B - 2 B$

So, the ratio of a man’s work to a boy’s work = 2:1.

Answer: (b) 2:1

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Basic Math

Q991: If x + 8 = 4, then x + 4 = ___?

Explanation

Q992: Solve 12 / 20 =?

Explanation

Q993: 40 × 5.1 = ____?

Explanation

Q994: If a binary relation is defines as r = {(4,5), (5,4), (5,4), (5,6),(6,4)}, then domain of R is ?

Explanation

Q995: 8.9 + 2 - 7 * = ?

Explanation

Q996: If 18 men can eat 20 kg of rice in 3 days how long with 6 men take to eat 40 kg of rice?

Explanation

Q997: if 37 of a number is 990.86 what will be approximately 19% of that number will be

Explanation

Q998: The half-interval method in numerical analysis is also known as?

Explanation

Q999: 839 – 680 = _____?

Explanation

Q1000: 5 men and 2 boys working together can do four times as much work as a man and a boy. Working capacities of a woman and a boy are in the ratio:

Explanation

Step 1: Let work capacities be M (man) and B (boy)

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