**Directions(1-5):** Find the missing term ‘?’ of the following questions.

- 418, 208, 102, 48, ?, 5
1030402050Option D

*2+2

*2+4

*2+6

*2+8

*2+10

? = 20 - 180, 191, 193, 203, 206, ?
250215241200232Option

+11

+2

+10

+3

+9

? = 215 - 3, 4, 9, 28, ?, 566
113100120111119Option A

*1+1

*2+1

*3+1

*4+1

*5+1

? = 113 - 153, 155, 160, 170, 187, ?
200213192220225Option B

Difference of difference

? = 213 - 3, 1.5, 1.5, 3, 12, 96, ?
14401123153616261330Option C

*0.5

*1

*2

*4

*8

*16

? = 1536 - Two vessels A and B contains milk and water mixed in the ratio 8:5 and 5:2 respectively. Find the ratio in which these two mixture be mixed to get a new mixture containing 69(3/13) % milk.
2:78:95:64:51:3Option A

Ratio = 2/91:1/13 = 2:7 - A shopkeeper buys 144 items at 1.8 Rs each. But later he realized that 13(8/9)% of the total items are defected and could not be sold. He sells the remaining at Rs. 2.4 each. What is his overall gain percentage?
12(20/23)%13(15/18)%9(19/23)%10(11/21)%14(22/27)%Option E

Total CP = 1.8 × 144 = Rs. 259.2

Total SP = ( 100– 125/900)*144*2.4 = Rs.297.6

Gain percentage = ( 297.6– 259.2)/259.6*100 = 14(22/27)% - How many kilograms of sugar costing Rs. 9 per kg must be mixed with 27kg of sugar costing Rs.7 per kg so that there may be gain of 10% by selling the mixture at Rs.9.24 per kg?
55 kg42 kg63 kg59 kg60 kgOption C

Mean price = 10/ 110 ×9.24 = 10×0.84 = 8.4

9 ===== 7

==8.4

1.4====0.6

Ratio = 7:3

Required Quantity = 27/3*7 = 63 kg - The CP of two dozen mangoes is Rs 32 , after selling 18 mangoes at 12 Rs per dozen ,the shopkeeper reduced the rate as Rs 4 per dozen. Then find the loss percentage ?
33.3%37.5%41.6%31.2%29.3%Option B

Total CP = 32

Total SP = 12 + 6 + 2 = 20

Loss percentage = 12/32 ×100 = 37.5% - A man takes 3 hours 45 minutes to row a boat 15 km downstream of a river and 2 hours 30 minutes to cover a distance of 5 km upstream. Find the speed of the current.
5 kmph1 kmph2 kmph4 kmph3 kmphOption B

Let downstream speed = x

Upstream speed = y 15/ 𝑥 = 3(45/60)

=>15/𝑥 = 15 4

=>𝑥 = 4

5/ 𝑦 = 2(30/60)

=>5/ 𝑦 = 5/ 2

=> 𝑦 = 2

Speed of current = 1 kmph

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