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

- 525,524,516,489,?,300
320425325400300Option B

-1^3,-2^3,-3^3,-4^3,-5^3

? = 425 - 24,36,72,180,?,1890
500525515540536Option D

*1.5,*2,*2.5,*3,*3.5

? = 540 - 32,37,27,42,?,47
1815201022Option E

+5,-10,+15,-20,+25

?= 22 - 12,10,17,47,?,909
172180198177183Option E

*1-2

*2-3

*3-4

*4-5

*5-6

? = 183 - 24,43,81,138,?,309
200214232222220Option B

+19*1

+19*2

+19*3

+19*4

+19*5

? = 214 - A boy covers 5 km north from his home, and then turns right to cover some distance at the speed of 4.8km/hr. in 2.5hours to reach his school. Find the shortest distance between his home and school.
1520161310Option D

Distance = 4.8*2.5 = 12 km

Shortest distance= (12^2 + 5^2)^1/2 = 13 km - Find the rate at which Rs.11500 yields Rs.5060 compound interest after 2 years when compounded annually.
2218252026Option D

Let the rate be r% p.a.

5060 = 11500*{(1+r/100)^2 -1}

=> 16560/11500 = (1+r/100)^2

=>r = 20% - The profit percent on an article â€˜Xâ€™ worth Rs.1500 is same as the loss percent on an article â€˜Yâ€™ worth Rs.2100. If the selling price of the article â€˜Yâ€™ is Rs.1680. Find the selling price of the article â€˜Xâ€™.
10001200180014001600Option C

Loss percent on article Y = (2100- 1680)/2100

= 20%

Profit on X = 20%

SP of article X = 1.2*1500 = Rs.1800 - A and B monthly incomes were Rs. 42000 and Rs.30000 resp. If Aâ€™s expenditure was 2/3rd of his income and Bâ€™s expenditure was 3/4th of his income. Find the sum of the monthly savings of A and B?
2300025025244702150022600Option D

Aâ€™s savings = 1/3*42000 = Rs.14000

Bâ€™s savings = Â¾*30000 = Rs.7500

Sum = Rs.21500 - The average height of all the males and all the females of a family is 172 cm and 180 cm resp. If the family has only married couples with no unmarried member. Find the average height of the family.
190145160176157Option D

Let the number of male members be x.

Required average = (172x+180x)/2x = 176 cm

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