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Directions(1-5):** What approximate value will come in place of question mark ‘?’ in the following questions.

- [(55% of 740 + 408) – ? *(41*13 – 515)] = 77
2835304149Option D

[(55% of 740 + 408) – ? *(41*13 – 515)] = 77

=>[ (407+408)- ?*(41*13-515)] = 77

=> [815 – ?*(533 – 515)] = 77

=> ?*18 = 738

=> ? = 41 - [29*9 + (589/19*3) – 14*17] = ?
120129116132161Option C

[29*9 + (589/19*3) – 14*17] = ?

=> 261 + (31*3) – 238 = ?

=> (261 + 93 – 238) = ?

=> ? = 116 - [? – (16*17 – 309) – (483/23+39)] = 284
187150177170163Option A

[? – (16*17 – 309) – (483/23+39)] = 284

=> ? – (272 – 309) – (21+39) = 284

=> ? + 97 = 284

=> ? = 187 - 612.12/17.91 + 11.04 *17.97 – (735.97/16) = ?
190195200186188Option D

612.12/17.91 + 11.04 *17.97 – (735.97/16) = ?

=> (612/18) + 11*18 – (736/16) = ?

=> 34 + 198 – 46 = ?

=> ? = 186 - (65.05% of 919.95 – 21.95*8.13) – 12.11*? = 109.90
1526122014Option B

(65.05% of 919.95 – 21.95*8.13) – 12.11*? = 109.90

=> (65% of 920 – 22*8) – 12*? = 110

=> 422 – 12*? = 110

=> ? = 26 - A,B and C started a business with initial investments of Rs.1200, Rs.1500 and Rs.1800 resp. After one year A,B and C together invested Rs.2200 in the ratio 2:6:3 resp. Find the profit share of B out of the total profit of Rs.1224.
Rs.444Rs.433Rs.425Rs.459Rs.400Option D

Additional investments of A,B and C resp. = 2/11*2200, 6/11*2200 and 3/11*2200 = 400,1200 and 600

Ratio of their investments = 2800:4200:4200 = 2:3:3

Profit share of B = 3/8*1224 = Rs.459 - Average age of a family of 6 persons four years ago was ‘x’ years. A baby born in between these four years. Now the averega age of the family is same as it was four years ago. Find the value of x if the present age of the baby is 2 years.
2630223537Option A

Sum of the ages of the 6 family members 4 years ago = 6x years

Sum of the ages of the 7 family members 4 years ago = 7x years

6x+6*4+2 = 7x

=> x = 26 - Vessel P contains mixture of milk and water mixed in the ratio 11:14 resp. Another vessel Q contains mixture of milk and water in the ratio 9:1 resp. In what ratio the mixture from container P is mixed with the mixture in container Q so as to obtain the resultant mixture having milk and water mixed in the ratio 4:1 resp.
2:11:53:53:27:6Option D

Fraction of milk in container P = 11/15

Fraction of milk in container Q = 9/10

P —— Q

11/15 ——— 9/10

———4/5

1/10 ———– 1/15

=> 3:2 - A,B and C can do a certain piece of work individually in 24,32 and 28 days resp. They started working together but after x days B left the job and 2x days before the completion of the work C left. Thus the whole job is completed in ‘4x-1’ days. Find the value of x.
53468Option C

(4x-1)/24+x/32+(2x-1)/28 = 1

=> [28(4x-1) + 21x + 24(2x-1)]/672 = 1

=> x = 4 - A bag contains certain number of wrist watches out of which 7 are not working. Two watches are drawn randomly from the bag. The probability that one watch is working and other is not working is 7/18. Find the number of watches in the bag. (Number of working watches are more than the number of defected watches)
2022302821Option D

Let total number of watches in the bag be x. xC1*7C1/(x+7)C1 = 7/18

=> x^2 – 23x + 42 = 0

=> x = 2,21

Total number of watches in the bag = 21+7 = 28