The reduction of 20% in the price of rice enables a person to obtain 50 kg more for Rs.450. Find the original price of rice per kg.
Let the total amount be 100 new prices. For Rs. 20 = 50 kgs. For Rs. 100 = 250 kgs. for 250kg new price =450 new price = 450/250=90/50=9/5 old price = 9/5 (100/80) =18/8=2.25
345 = √2704 ÷ (?% of 104) + 7 3
Simplify the following expression
4567.89 - 567.89 - 678.89 = ?
756 + 432 – 361 + ? = 990
36% of 640 – 12.5% of 352 + 25% of 640 = ? – 48% of 432
84% of 8400 + 42% of 6120 =?
(72 × 10 ÷ 20) × 10 = ?
(5/8) × 480 + (3/9) × 450 = (5/2) × ?
(13)2 - 3127 ÷ 59 = ? x 4
5490 ÷ 15 × 18 + 450 = ?
