Simple Interest- Aptitude Questions and Answers - in Hindi

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In what time will rupees 1860 amount to rupees 2641.20 at simple interest of 12%per annum?


1860 रुपये 12 % प्रतिवर्ष के साधारण ब्याज पर कितने समय में 2641.20 रुपए हो जाएंगे?

A)
3 years

B)
7/2 years

C)
4 years

D)
9/2 years


Correct Answer :

7/2 years


Explanation :

SI = 2641.20 - 1860 = 781.20

781.20 = (1860* 12* time) / 100
Time = 78120 / (1860* 12) =42 / 12 =7 / 2

John has invested amount at 10% per annual on simple interest. Four years later, the amount goes up to 770 rupees with interest, accordingly what was the amount?


जॉन ने एक धनराशि 10% वार्षिक साधारण ब्याज की दर पर निवेश की है। चार वर्षों बाद वह राशि ब्याज सहित 770 रुपये हो जाती है, तदनुसार वह राशि कितनी थी?

A)
650

B)
350

C)
550

D)
500


Correct Answer :

550


Explanation :

Let the amount is X Then, after 4 years SI =770 - X

(770 - X) = (X* 10* 4) / 100
(770 - X) = X*2 / 5
2*X = 3850 - 5*X
7*X = 3850
X = 550

Ravi invested amount P in a scheme A offering simple interest at 10% per annum for two years. He invested the whole amount he received from scheme A, in another scheme B offering simple interest at 12% per annum for five years. If the difference between the interests earned from schemes A and B was 1300, what is the value of P?


रवि ने योजना A मे प्रति वर्ष 10% की दर से साधारण ब्याज पर 2 वर्षों के लिए P राशि निवेश किया। योजना A से प्राप्त पूरी राशि को उसने एक अन्य योजना B में, प्रति वर्ष 12% की दर से साधारण ब्याज पर 5 वर्षों के लिए निवेश किया। यदि योजना A और B से अर्जित ब्याज में अंतर 1300 हे, तो P का मान क्या है?

A)

2500


B)

2000


C)

3000


D)

3500



Correct Answer :

2500


Explanation :

SI from scheme A = P*10*2 /100 =P/5
Amount received from scheme A =P + P/5 = 6P/5

Now, SI from scheme B= (6P/2)*12*5 /100 = 18P/25

According to the question, 18P/25 - P/5 = 1300
13P/25=1300
P=2500

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