Question
Ajay invested Rs.a in SI at 7% rate of interest per
annum for 9 years. Vishal invested the same amount in SI at 5% rate of interest per annum for 3 years and the difference between the interest obtained by Ajay and Vishal is Rs.2400. Find the amount invested by Vishal.Solution
According to question, => (a × 7 × 9)/100 – (a × 5 × 3)/100 = 2400 => 63a/100 – 15a/100 = 2400 => 48a/100 = 2400 => a = Rs.5000
27.27% of 5501.22 + 12.53% of 158.99 – √ 1599 = ?
98.999 x 99.001 + 640.856=?
[15.87% of 599.97 + 40.08 × ?] ÷ 4.04 = 8.082.02
If a:(b+c) =3:9 and c:(a+b) =10:14 then find the value of b:(a+c)?
119.98% of 80.02 - 15.12 × 2.02 + 19.95 = ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
A number is first increased by 35% and then decreased by 35%. If the net change in the number is 302.5, then find the original number.
What approximate value will replace the question mark (?) in the following?
18.99...
215.003X4.021 + 11.05 + 71.02 =?
A motor boat goes downstream from point A to B ,which is 36 km away from point A, and then returns to A. If actual speed of the boat in still water is 7...
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