English, asked by Ittssaallriigghtt, 10 months ago

Directions: Answer the following practice questions as per the best of your judgment. These questions are based on simple interest.
Q.1.If Rs. 4 becomes Rs. 10 in 50 years at simple interest, the rate % p.a. is
a) 5 %b) 2 1/2 %c) 3 1/3 %d) 3 %e) 6 %

Q.2. Find out the capital required to earn a monthly interest of Rs. 210 at 7 % simple interest.
a) Rs. 24000b) Rs. 30000c) Rs. 18000d) Rs. 36000e) Rs. 7200

Q.3. If Rs. 460 amounts to Rs. 640 in 6 years, what will it amount to in 2 years at the same rate %?
a) Rs.520b) Rs. 585c) Rs. 700d) Rs. 640e) Rs. 685

Q.4.A certain sum of money amounts to 7/4 of itself in 3 years. The rate percent p.a. is
a) 25 %b) 20 %c) 15%d) 10 %e) 5 %

Q.5.In what time will Rs. 25 become Rs. 37 at % p.a. simple interest?
a) 1/2 Yearsb) 2 Yearsc) 2 1/4 Yearsd) 2 1/2 Yearse) 3 Years

Q.6.The simple interest on a sum of money is of the principal and the number of years is equal to the rate % p.a. The rate % p.a. is
a) 5 %b) 2 1/3%c) 10 %d) 9 %e) 3 1/3%

Q7.A moneylender lends Rs. 60 and collects Rs. 66 at the end of four months. The rate of interest p.a. is
a) 5 %b) 10 %c) 20 %d) 30 %e) 9 %

Q8.A four year Indira Vikas certificate with a maturity value of Rs. 700 is purchased for Rs. 500.
The rate % p.a. is
a) 15 %b) 7 1/2 %c) 5 %d) 10 %e) 7 %

Q9.In what time period will Rs. 10,000 earn an interest of Rs. 2,000 at 10 % p.a.?
a) 2 years b) 5 years c) 6 years d) 3 years e) 7 years

Q10.Anoop borrowed Rs. 800 at 6 % p.a. & Rs. 1200 at 7 % p.a. for the same duration. He had to pay Rs. 1584 in all as interest. Find the time period
a) 10 yearsb) 11 yearsc) 12 yearsd) 13 yearse) 15 years

PLEASE FAST
FAST!!!1

Answers

Answered by Anonymous

Answer :D

Sol : Option D

Explanation: SI = 10 – 4 = 6 therefore, 6 = (4xRx50)/100 → R = 3 %.

Sol : Option D

Explanation: 210 = (Px7x1)/100x12 → P = 36000

Sol : Option A

Explanation: Interest for 6 years = 640 – 460 = Rs.180

therefore, Interest for 2 years = (180/6)x2 = Rs.60

therefore, 460 will become 460 + 60 = Rs. 520 after 2 years

Sol : Option A

Explanation: R=[100(x-1)]/t % therefore, R = [100(7/4-1)]/3 = 25%

Sol : Option E

Explanation: Interest =37 – 25 = 12 → 12 = (25/100)x16xT → T = 3 years

Sol : Option A

Explanation: = P/4 =(PxRxR)/100 → R2 =25% → R = 5%

Sol : Option D

Explanation: Interest = 66 – 60 = 6 therefore, 6 = 60/100 x R x 4/12 ⇒ R= 30%.

Sol : Option D

Explanation: Interest = 200 ⇒ 200 = (500 x R x 4)/100 ⇒ R = 10 %.

Sol : Option A

Explanation: 2000 = (10,000x10xT)/100

T = 2 years

Sol : Option C

Explanation: Interest at 1st rate for 1 year = 800 x (6x1)/100 = Rs. 48.

Interest for 1 year at 2nd rate = 1200 x (7 x 1)/100 = Rs. 84

therefore, Total interest for 1 year = Rs. 132.

Hence, the required time = 1584/132 = 12 years.

Hope it helped you

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Answered by Niharikamishra24

Answer :-

Answer 1st :- Sol : Option D

Explanation: SI = 10 – 4 = 6 therefore, 6 = (4xRx50)/100 → R = 3 %.

Answer 2nd :-Sol : Option D

Explanation: 210 = (Px7x1)/100x12 → P = 36000

Answer 3rd :- Sol : Option A

Explanation: Interest for 6 years = 640 – 460 = Rs.180

therefore, Interest for 2 years = (180/6)x2 = Rs.60

therefore, 460 will become 460 + 60 = Rs. 520 after 2 years

Answer 4th :- Sol : Option A

Explanation: R=[100(x-1)]/t % therefore, R = [100(7/4-1)]/3 = 25%

Answer 5th :-Sol : Option E

Explanation: Interest =37 – 25 = 12 → 12 = (25/100)x16xT → T = 3 years

Answer 6th :- Sol : Option A

Explanation: = P/4 =(PxRxR)/100 → R2 =25% → R = 5%

Answer 7th :- Sol : Option D

Explanation: Interest = 66 – 60 = 6 therefore, 6 = 60/100 x R x 4/12 ⇒ R= 30%.

Answers

Answer :D

Sol : Option D

Explanation: SI = 10 – 4 = 6 therefore, 6 = (4xRx50)/100 → R = 3 %.

Sol : Option D

Explanation: 210 = (Px7x1)/100x12 → P = 36000

Sol : Option A

Explanation: Interest for 6 years = 640 – 460 = Rs.180

therefore, Interest for 2 years = (180/6)x2 = Rs.60

therefore, 460 will become 460 + 60 = Rs. 520 after 2 years

Sol : Option A

Explanation: R=[100(x-1)]/t % therefore, R = [100(7/4-1)]/3 = 25%

Sol : Option E

Explanation: Interest =37 – 25 = 12 → 12 = (25/100)x16xT → T = 3 years

Sol : Option A

Explanation: = P/4 =(PxRxR)/100 → R2 =25% → R = 5%

Sol : Option D

Explanation: Interest = 66 – 60 = 6 therefore, 6 = 60/100 x R x 4/12 ⇒ R= 30%.

Sol : Option D

Explanation: Interest = 200 ⇒ 200 = (500 x R x 4)/100 ⇒ R = 10 %.

Sol : Option A

Explanation: 2000 = (10,000x10xT)/100

T = 2 years

Sol : Option C

Explanation: Interest at 1st rate for 1 year = 800 x (6x1)/100 = Rs. 48.

Interest for 1 year at 2nd rate = 1200 x (7 x 1)/100 = Rs. 84

therefore, Total interest for 1 year = Rs. 132.

Hence, the required time = 1584/132 = 12 years.

Hope it helped you

Answer :-

Answer 1st :- Sol : Option D

Explanation: SI = 10 – 4 = 6 therefore, 6 = (4xRx50)/100 → R = 3 %.

Answer 2nd :-Sol : Option D

Explanation: 210 = (Px7x1)/100x12 → P = 36000

Answer 3rd :- Sol : Option A

Explanation: Interest for 6 years = 640 – 460 = Rs.180

therefore, Interest for 2 years = (180/6)x2 = Rs.60

therefore, 460 will become 460 + 60 = Rs. 520 after 2 years

Answer 4th :- Sol : Option A

Explanation: R=[100(x-1)]/t % therefore, R = [100(7/4-1)]/3 = 25%

Answer 5th :-Sol : Option E

Explanation: Interest =37 – 25 = 12 → 12 = (25/100)x16xT → T = 3 years

Answer 6th :- Sol : Option A

Explanation: = P/4 =(PxRxR)/100 → R2 =25% → R = 5%

Answer 7th :- Sol : Option D

Explanation: Interest = 66 – 60 = 6 therefore, 6 = 60/100 x R x 4/12 ⇒ R= 30%.

Answer 8th :- Sol : Option D

Explanation: Interest = 200 ⇒ 200 = (500 x R x 4)/100 ⇒ R = 10 %.

Answer 9th :- Sol : Option A

Explanation: 2000 = (10,000x10xT)/100

T = 2 years

Answer 10th:-Sol : Option C

Explanation: Interest at 1st rate for 1 year = 800 x (6x1)/100 = Rs. 48.

Interest for 1 year at 2nd rate = 1200 x (7 x 1)/100 = Rs. 84

therefore, Total interest for 1 year = Rs. 132.

Hence, the required time = 1584/132 = 12 years.

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