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Data Interpretation


( 1 ) Rs. 800 amounts to Rs. 920 in 3 years at simple interest. If the interest rate is increased by 3%, it would amount to how much ?
 1) Rs. 992
 2) Rs. 1112
 3) Rs. 1056
 4) Rs. 1182

Show Answer Report Discussion in forumAnswer : 1) Rs. 992
Solution : Principal = 800 SI = 120 Time = 3 year
Rate = (100*120/800*3) = 5%
New rate = 8 % principal = 800 time 3 year
SI = (800*8*3/100) = 192
New amount = 800 + 192 = 992
discussion
Answer : 1) Rs. 992



( 2 ) Rashi deposits an amount of Rs.95000 at the rate of 12 p.c.p.a simple interest for 4 years. What total amount will Rashi get at the end of 4years?
 1) Rs.45600
 2) Rs.93100
 3) Rs.140600
 4) Rs.188100

Show Answer Report Discussion in forumAnswer : 3) Rs.140600
Solution : Total Amount = Principal + Simple Interest
Simple Interest = Principal * Rate * Term/100
= 95000 * 12 * 4/100 = Rs.45600
Therefore, the amount = Rs.95000 + Rs.45600 = Rs.140600.Ans.
discussion
Answer : 3) Rs.140600



( 3 ) Sam invested a certain amount of money and got back an amount of $ 8400. If the bank paid an interest of $ 700, find the amount Sam invested.
 1) 7700
 2) 8000
 3) 9000
 4) 9977

Show Answer Report Discussion in forumAnswer : 1) 7700
Solution : Amount (A) = $ 8400,
Simple Interest (SI) = $ 700
Principal (P) = Amount (A)  Interest (I)
= 8400  700
= 7700
Therefore, Sam invested $ 7700.
discussion
Answer : 1) 7700



( 4 ) Simple interest on a certain sum 16/25 of the sum. if both the rate of interest and time are same. then what is the rate of interest?
 1) 7%
 2) 8%
 3) 16%
 4) 21%

Show Answer Report Discussion in forumAnswer : 2) 8%
Solution : Let the principal be Rs x. Then, S.I = Rs(16x/25)
Let, rate = R% p.a
and time = R yearss. Then,
S.I = (P*T*R)/100 ==>16X/25
= x*R*R/100 ==> R*R = 64 = 8
Hence,rate = 8% p.a and time = 8 years
discussion
Answer : 2) 8%



( 5 ) The difference between the simple interest received from two different sources on Rs.1500 for 3 years is Rs.13.50. The difference between their rates of interest is
 1) 0.10%
 2) 0.20%
 3) 0.30%
 4) 0.40%

Show Answer Report Discussion in forumAnswer : 3) 0.30%
Solution : 1500 * R_{1} * 3/100  1500 * R_{3} * 3/100 = 13.50
=> 4500(R_{1}  R_{2}) = 1350
=> R_{1}  R_{2} = 1350/4500=0.3%
discussion
Answer : 3) 0.30%



( 6 ) A lent Rs. 5000 to B for 2 years and Rs 3000 to C for 4 years on simple interest at the same rate of interest and received Rs 2200 in all from both of them as interest. The rate of interest per annum is
 1) 9%
 2) 10%
 3) 11%
 4) 12%

Show Answer Report Discussion in forumAnswer : 2) 10%
Solution : Let R% be the rate of simple interest then,
from question we can conclude that
(5000 * R * 2/100) + (3000 * R * 4/100) = 2200
=> 100R + 120R = 2200
=> R = 10%
discussion
Answer : 2) 10%



( 7 ) Satish took a loan at 10% p.a. S.I. After 4 years, he returned the principal along with the inlerest. If he returns in all Rs. 3500, what is the principal amount?.
 1) Rs. 3250
 2) Rs. 3150
 3) Rs. 2500
 4) Rs. 2100

Show Answer Report Discussion in forumAnswer : 3) Rs. 2500
Solution : Let principal be x then x + (x * 10 * 4)/100 = 3500 hence x = 2500
discussion
Answer : 3) Rs. 2500



( 8 ) A certain amount earns simple interest of Rs. 1200 after 10 years. Had the interest been 2% more, how much more interest would it have earned?
 1) Rs. 25
 2) None of these
 3) Rs. 120
 4) Cannot be determined

Show Answer Report Discussion in forumAnswer : 4) Cannot be determined
Solution : Since we do not have the principal and rate of interest, we can not find out the required details.
discussion
Answer : 4) Cannot be determined



( 9 ) Anurima invests an amount of Rs.12710 on simple interest after a certain period. For how many years did she invest the amount to obtain the total sum?
 1) 6 years
 2) 8 years
 3) 5 years
 4) 4 years

Show Answer Report Discussion in forumAnswer : 1) 6 years
Solution : Term ( or no. of years etc ) = Simple Interest * 100/Principal * rate
Simple Interest = Rs.12710  Rs.10250 = Rs.2460
Therefore, the term = 2460 * 100/4 * 10250 = 6 years. Ans.
discussion
Answer : 1) 6 years



( 10 ) Richard deposits $ 5400 and got back an amount of $ 6000 after a year. Find the simple interest he got.
 1) 500
 2) 700
 3) 600
 4) 400

Show Answer Report Discussion in forumAnswer : 3) 600
Solution : Principal (P) = $ 5400,
Amount (A) = $ 6000
Simple Interest (SI) = Amount (A)  Principal (P)
= 6000  5400
= 600
Therefore, Richard got an interest of $ 600.
discussion
Answer : 3) 600
