Question
If a sum of money becomes 4000 in 2 yrs and 5500 in 4
yrs 6 months at the same rate of simple interest per annum. Then the rate of simple interest isSolution
Amount in 2 years = 4000 amount in 4.5 years = 5500 interest received in 2.5 years= 5500-4000 = 1500 interest received in 1 year = 600 interest received in 2 years = 1200 amount = principal + interest amount received in 2 years = principal + 1200 4000 - 1200 = 2800 principal = 2800 interest = 600 Rate of interest = (600/2800) × 100 = 21(3/7)%
√324 * 6 – 20% of 180 + ? = 130% of 150
What is the value of 143 + 163 + 183 + … + 303?
(2/?) x (3/16) x (2/15) x 60 = 1/3


154 × 7 + 480 × 5 =?% of 6956
- What will come in the place of question mark (?) in the given expression?
40% of (320 ÷ 4) + 2² X 25 = ? + 42 (5/8 of 480 - 30% of 420)² ÷ (√81 + 25% of 320) = ?
17% of 250 + ? = 108
Simplify the following expression and find the final value:
(18 ÷ 6 of 2 + 7 of 5) ÷ 5