Simplification Questions for Syndicate Bank PO, Canara Bank PO and SBI PO

Directions (Q.1-5): What will come in the place of question mark (?) in the following quetsions?

 

Q.1 252 − 302 + 182 = (9 − x)2

(A) − 1

(B) 4

(C) 2

(D) − 6

(E) 5

 

Q.2 1584 ÷ 36 × 2.5 + 676 = ? − 21

(A) 125

(B) 135

(C) 110

(D) 95

(E) None of these

 

Q.3 162 + 212?4 + 112

(A) 24

(B) 30

(C) 124

(D) 56

(E) 72

 

Q.4 30% of 240 +  ? + 20% of 620 = 211

(A) 196

(B) 144

(C) 121

(D) 225

(E) None of these

Q.5 
91
23
+
13
46
×
343
 91 
81
69
=
?
276

(A) 1602

(B) 1162

(C) 1062

(D) 1620

(E) 1026

 

Answer 1. (C) 2

Explanation:

252 − 302 + 182 = (9 − x)2

625 − 900 + 324 = (9 − x)2

949 − 900 = (9 − x)2

49 = (9 − x)2

49 = 9 − x

9 − x = 7

x = 9 − 7 = 2

 

Answer 2. (E) None of these

Explanation:

1584 ÷ 36 × 2.5 + 676 = ? − 21

44 × 2.5 + 26 = ? − 21

110 + 26 + 21 = ?

? = 115

 

Answer 3. (A) 24

Explanation:

162 + 212 = ?4 + 112

256 + 441 = ?4 + 121

697 − 121 = ?4

576 = ?4

5762 = ?4

(242)2 = ?4

244 = ?4

? = 24

 

Answer 4. (D) 225

Explanation:

30% of 240 + ? + 20% of 620 = 211

72 + ? + 124 = 211

? + 196 = 211

? = 211 − 196

? = 15

? = 225

 

Answer 5. (C) 1062

Explanation:

91
23
+
13
46
×
343
 91 
81
69
=
?
276
91
23
+
49
46
81
69
=
?
276
546 + 147 − 162
          138           
=
?
276
531
 138
=
?
276

? = 531 × 2 = 1062

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