**Directions(1-5):** The table given below shows the amount of money invested by five different friends in two different schemes for the same period of time but at given rate of interests.

- What is the average amount invested by Fardeen,Suraj and Jeet?
5689072000600476433374500Option D

Required average = 61000+69000+63000/3

= 64333 - If scheme A offers simple interest then find the total interest earned by all the friends together from scheme A.
Rs.58500Rs.55500Rs.57916Rs.55895Rs.50000Option C

Interest earned by Dev from scheme A = 24000*5*0.15 = Rs.18000

Interest earned by Fardeen from scheme A = 24400*2*0.08 = Rs.3904

Interest earned by Champak from scheme A = 45000*3*0.10 = Rs.13500

Interest earned by Suraj from scheme A = 48300*2*0.12 = Rs.11592

Interest earned by Jeet from scheme A = 28000*3*0.13 = Rs.10920

Total interest earned from scheme A = 18000+3904+13500+11592+10920

= Rs.57916 - What is the ratio of the interest earned by Champak from scheme B to the interest earned by Dev from scheme A? Both the schemes offer simple interests.
66:20363:19061:21163:20063:191Option D

Amount invested by Champak in scheme B = 72000/8*3 = Rs.27000

Interest earned by Champak from scheme B = 27000*3*0.07 = Rs. 5670

Amount invested by Dev in scheme A = 56000/7*3 = Rs.24000

Interest earned by Dev from scheme A = 24000*5*0.15 = Rs.18000

Desired ratio = 5670:18000 = 63:200 - If it said that scheme A offers simple interest then what is the difference between the interest earned by Dev from scheme A and the interest earned by Jeet from scheme A ?
Rs.6560Rs.6900Rs.6666Rs.7000Rs.7080Option E

Amount invested by Dev in scheme A = 56000/7*3 = Rs.24000

Interest earned by Dev from scheme A = 24000*5*0.15 =Rs. 18000

Amount invested by Jeet in scheme A = 63000/9*4 = Rs.28000

Interest earned by Jeet from scheme A = 28000*3*0.13 = Rs. 10920

Desired difference = 18000 – 10920 = Rs.7080 - What is the total interest earned by Champak from scheme A and B together if scheme A offers compound interest and scheme B offers simple interest?
Rs. 18880Rs. 20565Rs. 19950Rs. 22000Rs. 20000Option B

Amount invested by Champak in scheme A and B = 72000/8*5 = Rs.45000 and 72000/8*3 = Rs.27000

Interest earned by Champak from scheme A = 45000*{(1+0.10)^3-1} = Rs. 14895

Interest earned by Champak from scheme B = 27000*3*0.07 = Rs. 5670

Total interest earned by Champak = 14895+5670 = Rs. 20565 - A and B together started a business with an investment of Rs. 4800 and Rs. 3600 resp. After 4 months, C joined them with an investment of Rs. 6000. After a year, they received a total profit of Rs. 7750, the find the profit share of B, where it is decided that A will be given 20% of the profit for managing the business and remaining will be distributed according to their investment
Rs.1920Rs.1950Rs.1888Rs.1800Rs.1770Option D

Ratio of investment of A:B:C = 4800:3600:6000 = 4:3:5

Ratio of profit share of A:B:C = (4*12):(3*12):(5*8) = 12:9:10

Profit share of A for managing the business = 7750*0.2 = Rs. 1550 Remaining profit share = 7750 – 1550 = Rs. 6200

Profit share of B = [9/(12+9+10)]*6200 = Rs.1800 - The age of three friends Dia, Anu and Ankita is (x-6) years , (x+6) years and (x+4) years respectively. The average age of Dia and Anu taken together is 5 years less than the average age of Anu and Ankita taken together. Find the age of Anu.
30102515Cannot be determined.Option E

[(x-6)+(x+6)]/2 = [(x+6)+(x+4)]/2-5

=> x = x - Tim and Jim start from point A and B resp. towards each other at the same time. The speed of Tim and Jim is (x-4) km/hr. And (x+2)km/hr. resp. after crossing each other Jim travels 48 km to reach point A. Find the value of x, if the distance between point A and B is 144 km.
1520121017Option D

Time of travel for both before crossing = 144/[(x-4)+(x+2)] Now, 144/[(x-4)+(x+2)]*(x+2)+48 = 144

=> 144/[(x-4)+(x+2)]*(x+2) = 96

=> x = 10 - Puja earns Rs.28000 per month and spends 25% on rent. If he spends 30% of the remaining on food and 20% of the remaining on entertainment then find the monthly savings of Puja.
Rs. 12220Rs. 12500Rs. 10000Rs. 11000Rs. 11760Option E

Amount spend on rent = 0.25*28000 = Rs.7000

Remaining amount = 28000 – 7000 = Rs.21000

Amount spend on food = 0.3*21000 = Rs. 63000

Remaining amount = 21000 – 6300 = Rs. 14700

Amount spend on entertainment = 0.2*14700 = Rs. 2940

Remaining amount = 14700 – 2940 = Rs. 11760

Required monthly saving = Rs. 11760 - The difference between the compound interest obtained and simple interest obtained on a sum at the rate of 10% per annum after 2 years is Rs. 280. Find the sum.
Rs. 19000Rs. 12000Rs. 15000Rs. 20000Rs. 28000Option E

Let sum be Rs.P. S.I = (P*10*2)/100 = 0.2P

C.I = P[(1.1)^2 – 1] = 0.21P 0.21P – 0.2P =280

=>P = Rs. 28000