Rs. 25,000 is invested partly at 8% and partly at 12% per annum simple interest. If the overall return is 9.2% per annum, how much is invested at 12%?
Correct answer B. Rs. 7,500
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A sum doubles in 8 years at simple interest. What will Rs. 5,000 amount to in 12 years at the same rate?
Correct answer A. Rs. 12,500
A sum amounts to Rs. 6,600 in 2 years at simple interest. Had the rate been 2% per annum higher, it would have amounted to Rs. 6,840. What is the sum?
Correct answer D. Rs. 6,000
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The simple interest on a sum for 5 years at 6% per annum is Rs. 1,710. What is the simple interest on the same sum for 3 years at 8.5% per annum?
Correct answer C. Rs. 1,453.50
Two equal sums are lent at 7% and 9% per annum simple interest. After 4 years the interest on the second exceeds that on the first by Rs. 640. What is each sum?
Correct answer A. Rs. 8,000
The ratio of a principal to its amount at simple interest at the end of 4 years is 5 : 7. What is the rate of interest per annum?
Correct answer D. 10%
Ali lends Rs. 5,000 at 10% per annum and Bushra lends Rs. 6,000 at 5% per annum, both at simple interest. After how many years will their amounts be equal?
Correct answer D. 5 years
Farah deposits Rs. 6,400 in a savings scheme paying 7.5% per annum simple interest. How much interest will she earn in 3 years?
Correct answer C. Rs. 1,440
A shopkeeper borrows Rs. 9,500 at 6% per annum simple interest. What amount must he repay at the end of 4 years?
Correct answer D. Rs. 11,780
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A sum of money earns a simple interest of Rs. 2,016 in 3 years 6 months at 8% per annum. What is the sum?
Correct answer A. Rs. 7,200
Rs. 5,600 lent at simple interest earns Rs. 1,512 as interest in 3 years. What is the rate of interest per annum?
Correct answer C. 9%
In how many years will Rs. 4,800 earn a simple interest of Rs. 1,800 at 6.25% per annum?
Correct answer C. 6 years
A sum of money doubles itself in 12.5 years at simple interest. What is the rate of interest per annum?
Correct answer C. 8%
At 6.25% per annum simple interest, in how many years will a sum of money double itself?
Correct answer B. 16 years
A sum of money becomes three times itself in 16 years at simple interest. What is the rate of interest per annum?
Correct answer A. 12.5%
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A sum of money doubles in 9 years at simple interest. In how many years will it become five times itself at the same rate?
Correct answer C. 36 years
A sum lent at simple interest amounts to Rs. 7,392 in 2 years and to Rs. 8,316 in 3 years 6 months. What is the sum?
Correct answer A. Rs. 6,160
A sum amounts to Rs. 14,880 in 3 years and to Rs. 16,800 in 5 years at the same rate of simple interest. What is the rate of interest per annum?
Correct answer A. 8%
Nadia invests Rs. 18,000, part at 6% and the rest at 9% per annum simple interest. If her total yearly interest is Rs. 1,410, how much did she invest at 6%?
Correct answer B. Rs. 7,000
What is the ratio of the simple interest on a sum at 5% per annum for 4 years to the simple interest on the same sum at 8% per annum for 3 years?
Correct answer C. 5 : 6