- Pratyush lent Rs.21600 to be divided between her two daughters who aged 9 years and 11 years such that both of them would get an equal amount at certain age when lent at rate of 10% SI per anuum. If their investments are in ratio of 51:57 respectively.Then at what age both will received same amount?
9 years10 years14 years15 years18 yearsOption E

p+q = 21600

p/q = 51/57

p = 10200 q = 11400

10200+10200*10*(p-9)/100 = 11400+11400*10*(p-11)/100

p= 18 years - Sum of money becomes Rs.1815 at 7% SI after 3 years. Same sum of money becomes Rs. 2235 at same interest after 7 years.Find the sum of money?
Rs 1500Rs 1400Rs 1350Rs 1450None of theseOption A

2235-1815 = P/100(7*7-7*3)

Sum = Rs 1500 - Ramesh invests in a company Rs. 124000 for 9 years at 5% SI. Income tax at the rate of 19% is deducted from interest earned at the end of every year. Find the amount at the end of 9th year?
Rs 1,25,587Rs 1,78,158Rs 1,69,198Rs 1,55,188None of theseOption C

For 1 year = 124000*5/100 = Rs 6200

income tax = 6200*81/100 = Rs 5022

For 9 years = Rs 45198

Amount = 124000+45198 = Rs 1,69,198 - Akansha lent a part of Rs. 15900 to Rashi at 6% SI. Rest to Anvesha at 5% SI. After 4 years she got an amount of Rs 19376 in total. Then what is the amount paid by Anvesha in total?
Rs 9500Rs 10,200Rs 11,500Rs 12,000None of theseOption B

3476 = p*6*4/100 + (15900-p)*5*4/100

p =7400

Anvesha = 8500+8500*4*5/100 = Rs 10200 - What amount would Rs.2500 fetch if it is lent at 8% SI for 15 years?
Rs 6000Rs 4200Rs 4500Rs 5000Rs 5500Option E

SI = 2500*8*15/100

=3000

Amount = 2500+3000 = Rs 5500 - The simple interest on a certain sum for 2 years at 10% per annum is Rs. 80. The corresponding compound interest is which of the following?
Rs 84Rs 95.50Rs 89.25Rs 88Rs 90Option A

Sum = 100 x80/2 x 10 =Rs 400

C.I. = Rs.400x (1+10)^ 2/100 – 400 = Rs 84 - If the difference between the simple interest and compound interests on some principal amount at 10% for 3 years is Rs. 45, then the principal amount is which of the following?
Rs 1342Rs 1398Rs 1444Rs 1452None of theeOption D

Sum = Difference x (100)^3/r^2(300 + r)

= 45 x (100)^3/10^2 (300 + 10)

= 45000//31 = Rs 1452 - If the difference between the CI and SI on a sum of money at 5% per annum for 2 years is Rs.15.Find the Simple Interest ?
Rs 750Rs 500Rs 250Rs 600None of theseOption D

15 =P*( 5/100)^2

P = Rs 6000

SI =(6000*5*2)/100 = Rs 600 - The effective annual rate of interest corresponding to nominal rate of 4% per annum payable half yearly will be which of the following?

4.404.044.04.05None of theseOption B - A sum was invested at compound intrest to Rs.800 in 3 years and to Rs.840 in 4 years.Find rate of interest per annum?
5%4%2%7%None of theseOption A

Rate of intrest = (100 × 40)/(800×1) = 10/2 = 5%