Bank PO Quantitative aptitude Quiz 34

1 . Directions(1-5) : What approximate value will come in place of question mark (?) in the following questions? (You are not required to calculate the exact value.) $Q.$ 10303.88 $\div$ 55.94 + 62.95 = ? A.   247 B.   250 C.   260 D.   220 2 . $\sqrt{12321 \over 36.07}$ A.   20 B.   18.5 C.   17 D.   17.5 3 . 19.03 $\times$ 16.98 $\times$ 13.01 = ? A.   4000 B.   4100 C.   4200 D.   4250 4 . 117% of 459.88 - 162% of 143.02 = ? A.   290 B.   280 C.   300 D.   306 5 . $3\over 5$ x $4 \over 9$ x 5894.92 = ? A.   1527 B.   1572 C.   1752 D.   1725 6 . The total number of students in a college is 3906. The number of girls is 1638. What is the ratio of boys to girls in the college ? A.   18: 13 B.   13 : 18 C.   13: 19 D.   19:13 7 . A person sells an article for Rs.890 at a loss of 11%. What will be the price of the article when sold at a profit of 10%? A.   1100 B.   1010 C.   1200 D.   1150 8 . The breadth of a rectangular field is 9 metres. Its diagonal is 15 metres long. What will be the area of the rectangular field? A.   110 sq m B.   108 sq m C.   115 sq m D.   120 sq m 9 . Directions(8-10) : What will come in place of question mark (?) in the following number series? $Q.$ $92\,\,\, ? \,\,\,97 \,\,\,124 \,\,\,140 \,\,\,265$ A.   93 B.   96 C.   94 D.   95 10 . $243\,\,\, ? \,\,\,252 \,\,\,279 \,\,\,343 \,\,\,468$ A.   245 B.   244 C.   246 D.   247

Answers & Solutions   1 .     Answer : Option A Explanation : ? $\cong$ 10304 $\div$ 56 + 63 = 184 + 63 = 247 2 .     Answer : Option B Explanation : ? = $\sqrt{12321 \over 36}$ $\cong$ $111 \over 6$ = 18.5 3 .     Answer : Option C Explanation : ? $\cong$19 $\times$ 17 $\times$ 13 = 4199 $\cong$4200 4 .     Answer : Option D Explanation : ? $\cong$117% of 459.88 - 162% of 143.02 $\cong$ $117 \times 460 \over 100$ - $162 \times 143 \over 100$ = 538.2 - 231.66 $\cong$538 - 232 = 306 5 .     Answer : Option B Explanation : ? = $3\over 5$ x $4\over 9$ x 5894.92 $\cong$ $3 \over 5$ x $4 \over 9$ x 5895 = 1572 6 .     Answer : Option D Explanation : Number of boys in the college = 3906 - 1638 = 2268 Number of girls in the college = 1638. Reqd ratio = $2268 \over 1638$ = 18 : 13 7 .     Answer : Option A Explanation : Selling price = 890 x $100 \over 89$ x $110\over 100$ = 1100 8 .     Answer : Option B Explanation : 9 .     Answer : Option A Explanation : The series is +$1^ 3$ , +$2^ 2$ , +$3^ 3$ , +$4^ 2$ , +$5^ 3$ , .. 10 .     Answer : Option B Explanation : The series is +$1^ 3$ , +$2^ 3$ , +$3^ 3$ , +$4^ 3$ , +$5^ 3$ , ..