Question
What is the interest earned when Rs. 4000 is invested
for 2 years in a scheme which offers compound interest (compounded every 12 months) of 25% p.a.Solution
Time period = 24 ÷ 12 = 2 terms of 12 months each Effective rate of interest = 25 × (12/12) = 25% So, interest earned = 4000(1 + 25/100)² – 4000
= 4000 × (125/100)² – 4000
= 4000 × 1.5625 – 4000
= 6250 – 4000 = Rs. 2250
319.995 × 15.98 ÷ 4.002 - ? × 7.95 = 1679.89 ÷ 2.005
564.932 + 849.029 – 425.08 = 612.095 + ?
`root(3)(725.87)` `-:` `sqrt(81.033)` Â + 49.88% of 809.77 = ? - (14.78Â `xx` Â 52.2)
9.8 × 77.9 ÷ (2.3)2 = ?
What value should come in place of question mark (?) in the following question. (You need not to calcualte the exact value)
?/647 = 226/ ?
499.99 + 1999 ÷ 39.99 × 50.01 = ?
79.99% of (84.89 × 5.99) - (3.89)2 × 21.87 = ?
(112 × 4) ÷ 16 + 484 = (?)3
72.8% of (215.69 + 189.38) - 5.97² + (3.01 of 7.8) = ? of (64.02 - 38.95)
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