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Directions: What will come in place of question mark(?) in the following questions?
1
∛(126 + 392 ÷ 7 – 35 + 142) = ?

A
8
» Explain it
B
⇒ ∛(126 + 392 ÷ 7 – 35 + 142) = ?
 
⇒ ∛(126 + 56 – 35 + 196) = ?
 
⇒ ∛(378 – 35) = ?
 
⇒ ∛343 = ?
 
⇒ ? = 7
 
Hence, option B is correct.
2
120% of 200 +  162 – 122  – 15 = ?
2
» Explain it
B
120% of 200 +  162 – 122  – 15 = ?
2

⇒ 240 +  256 – 144  – 15 = ?
2

⇒ 240 +  112  – 15 = ?
2

⇒ 240 + 56 – 15 = ?

⇒ ? = 296 – 15

⇒ ? = 281

Hence, option B is correct.
3
  56  × √441 – √729 = √?
7 × 2
» Explain it
B
  56  × √441 – √729 = √?
7 × 2

⇒ √? =  56  × 21 – 27
14

⇒ √? = (84 – 27) ⇒ ? = (57)2

⇒ ? = 3249

Hence, option B is correct.
4
3 1  + 7 2  – 4 1   = ? + 2 1  
6 3 4 6
» Explain it
E
3 1  + 7 2  – 4 1  = ? + 2 1  
6 3 4 6

3 1  + 7 2  – 4 1  – 2 1  = ?
6 3 4 6

or, ? = (3 + 7 – 4 – 2) +  ( 1  +  2  –  1  –  1 )
6 3 4 6

= 4 +  2 + 8 – 3 – 2
12

= 4 +  5
12

= 4 5
12

Hence, option E is correct.
5
1366 + 336 – 666 – 33 + 333 = ?
» Explain it
A
1366 + 336 – 666 – 33 + 333 = ?
 
⇒ 1336 = ?
 
Hence, option A is correct.
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