0
Q:

A) 3/5 B) 3/6
C) 3/7 D) 3/8

Answer:   C) 3/7



Explanation:

= \inline {\color{Blue}\frac{\frac{7}{2}\times \frac{2}{5}\times \frac{3}{2}}{\frac{7}{2}\div \frac{15}{4}}\div 5.25}

=\inline {\color{Blue}\frac{\frac{21}{10}}{\frac{7}{2}\times \frac{4}{15}}\div \frac{525}{100}}

=\inline {\color{Blue}\frac{21}{10}\times \frac{15}{14}\times \frac{100}{525}=\frac{6}{14}=\frac{3}{7}}

Q:

Find the value of '?'

A) 166251 B) 166259
C) 166252 D) 166253
 
Answer & Explanation Answer: C) 166252

Explanation:

Given 

Using unit digit method,

On LHS,

1 x 1 x 1 = 1

sqrt of last digit 1 => it must end with either 9 or 1

so now

1 x 1 = 1

1 x 9 = 9

On RHS,

? + 89

=> ? = ...1 - 89 = last digit is 11- 9 = 2

or

=> ? = ...9 - 89 = last digit is 9 - 9 = 0

Here in the options last digit 2 is option C.

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5 37
Q:

1397 x 1397 = ?

Here what replaces '?' 

A) 1951609 B) 1821504
C) 2031489 D) 1847879
 
Answer & Explanation Answer: A) 1951609

Explanation:

1397 x 1397

Number System mcq solution image

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5 107
Q:

Given that 100.48 = x,  100.70 = y and xz = y2,  then the value of z is close to ___ ?

A) 3.7 B) 2.7
C) 3.6 D) 2.9
 
Answer & Explanation Answer: D) 2.9

Explanation:

xz = y2        10(0.48z) = 10(2 x 0.70) = 101.40

 0.48z = 1.40

 z = 140/18 = 35/12 = 2.9 (approx.)

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7 146
Q:

What value will come in place of question mark (?) in the questions given below ?

 [(180)2 ÷ 60×14] ÷ 9 = ? × 24

A) 22 B) 33
C) 35 D) 28
 
Answer & Explanation Answer: C) 35

Explanation:

Given 

 [(180)2 ÷ 60×14] ÷ 9 = ? × 24

 [(180 x 180) ÷ 60×14] ÷ 9 = ? × 24

?= 180×3×14 / 9×24

? = 35.

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6 386
Q:

The price of 2 oranges, 3 bananas and 4 apples is Rs. 15. The price of 3 oranges, 2 bananas and 1 apple is Rs. 10. What will be price of 4 oranges, 4 bananas and 4 apples  ?

A) Rs. 10 B) Rs. 15
C) Rs. 20 D) Rs. 25
 
Answer & Explanation Answer: C) Rs. 20

Explanation:

Let the Oranges be 'O', Bananas be 'B' and Apples be 'A'

From the given data,

 

2O + 3B + 4A = 15 ...... (I)

3O + 2B + A = 10 ..... (II)

On adding (I) and (II),

5O + 5B + 5A = 25

O + B + A = 5

4O + 4B + 4A = 20.

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7 586