Let Principal = x Amount = 5x Simple Interest = 5x-x=4x Simple Interest = (P ×R ×T)/100 4x = (x ×16 ×T)/100 T = 25 years. Alternate method: Principal (100) → amount (500) So interst = 500 -100 = 400% @ 16% So time = 400/16 = 25 years
3/8 of 720 ÷ 15 + 12 = √?
(8.6 × 8.6 + 4.8 × 4.8 + 17.2 × 4.8) ÷ (8.62 – 4.82 ) = ? ÷ 19
Solve the following equation.
143 + 14.3 + 1.43 + 0.143 + 0.0143 =?
12 × 19 + 13 × 15 + 152 = ?% of 500
√3600% of 150 + 3/5 of 360 - ? = 210
[192 ÷ 6 × 5] ÷ (? + 3) = 20
2852 + 7848 + 2962 + 4268 = ? – 1460
345 × 20 ÷ 4 + 28 + 60 = ?
120% of 400 + ?% of 520 = 1000
(?) x 3 + 68 = √9025
