SBI PO Quantitative aptitude practice set 13

1 . Directions (1-5): What should come in place of the question mark (?) in the following questions? $Q.$ $[(192)^2 \div 64 \times 24] \div 48$ = $\sqrt(?)$ A.   83000 B.   82944 C.   82954 D.   82950 2 . 555.55 + 55.55 + 15 + 0.55 + 0.05 = ? A.   626.65 B.   626.50 C.   625.70 D.   626.70 3 . (21% of 1326) – (17% of 932) = ? A.   120.02 B.   206.05 C.   240.04 D.   120.20 4 . $\sqrt{182.25}$ = ? A.   11.25 B.   12.5 C.   13.5 D.   14.5 5 . $\sqrt { {1331}^{1\over 3} + {343} ^{1\over3}}$ = ? A.   2 B.   5 C.   4 D.   3 6 . Directions (6-10): What should come in place of question mark (?) in the following number series? $Q.$ $11\,\,\,\, 13 \,\,\,\,17 \,\,\,\,19 \,\,\,\,23 \,\,\,\,29 \,\,\,\,31 \,\,\,\,37 \,\,\,\,?$ A.   47 B.   43 C.   41 D.   39 7 . $165\,\,\, 195 \,\,\,255 \,\,\,285 \,\,\,345 \,\,\,?$ A.   375 B.   420 C.   435 D.   390 8 . $7\,\,\, 26 \,\,\,63 \,\,\,124 \,\,\,215 \,\,\,342\,\,\, ?$ A.   481 B.   511 C.   391 D.   421 9 . $2\,\,\, 4\,\,\, 12 \,\,\,48 \,\,\,240 \,\,\,?$ A.   1920 B.   960 C.   1080 D.   1440 10 . $8\,\,\, 7 \,\,\,11 \,\,\,12 \,\,\,14 \,\,\,17 \,\,\,17 \,\,\,22 \,\,\,?$ A.   20 B.   22 C.   24 D.   27

Answers & Solutions   1 .     Answer : Option B Explanation :   2 .     Answer : Option D Explanation :   3 .     Answer : Option A Explanation : ? = (21% of 1326) – (17% of 932) = 21% of 17 × 78 – 17% of 932 = 17% of (21 × 78 – 932) = 17% of (1638 – 932) = 17% of 706 = 120.02 4 .     Answer : Option C Explanation :   5 .     Answer : Option A Explanation :   6 .     Answer : Option C Explanation : All are prime numbers 7 .     Answer : Option C Explanation : The series is: 15 × 11 = 165 15 × 13 = 195 15 × 17 = 255 15 × 19 = 285 15 × 23 = 345 15 × 29 = 435 8 .     Answer : Option B Explanation : The series is: $2^ 3$ – 1 = 7 $3^ 3$ – 1 = 26 $4^ 3$ – 1 = 63 $5^ 3$ – 1 = 124 $6^ 3$ – 1 = 215 $7^ 3$ – 1 = 342 $8^ 3$ – 1 = 511 9 .     Answer : Option D Explanation : The series is: 2 × 2 = 4 4 × 3 = 12 12 × 4 = 48 48 × 5 = 240 240 × 6 = 1440 10 .     Answer : Option A Explanation : These are two series: 8, 11, 14, 17, 20 and 7, 12, 17, 22 Next number is 20.