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16. A sum of Rs. 2540 is lent out into two parts, one at 12% and another one at 12 %. If the total annual income is Rs. 311.60, he money lent at 12% is:
A. Rs. 1180
B. Rs. 1360
C. Rs. 1240
D. Rs. 1340
Explanation: ANSWER : Rs. 1180
17. 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?
A. Rs. 1056
B. Rs. 1112
C. Rs. 1182
D. Rs. 992
Explanation: ANSWER : Rs. 992
18. A sum of money amouns to Rs. 850 in 3 years and Rs. 925 in 4 years. The sum is:
A. Rs. 600
B. Rs. 575
C. Rs. 625
D. date inadequate
Explanation: ANSWER : Rs. 600
19. A lent Rs. 600 to B for 2 years and Rs. 150 to C for 4 years and received altogether from both Rs. 90 as simple interest. The rate of interest is:
A. 4%
B. 5%
C. 10%
D. 12%
Explanation: ANSWER : 5%
20. The simple interest on a sum of money will be Rs. 600 after 10 years. If the principal is trebled after 5 years. What will be the total interest at the end of the tenth years?
A. Rs. 600
B. Rs. 900
C. Rs. 1200
D. data inadequae
Explanation: ANSWER : Rs. 1200