Since the train covers different distance with different speeds. So, Average speed = Total Distance/Total Time Total distance = 40 + 50 + 30 = 120 km Time1 = 40/30, Time2 = 50/40 & Time3 = 30/40 Total Time = 40/30 + 50/40 + 30/40 Therefore, Average Speed = 120/(40/30 + 50/40 + 30/40) = 36 km/hr
15% of 695 – 12.5% of 250 =? – 1200
7/11 × 1034 + 1(4/7) × 2401 = 1230 +?
33 × ?2 – 6 × 5 = 3270
648 ÷ 36 × 49 – 1012 + 847 = ?
20% of 10% of 900 + 84/12 = ?2
√64 of √225 = √(25 + ?) X 12
Find the simplified value of the given expression: 18 × 3 ÷ 6 + 24 ÷ 4 of 2 − 60 ÷ 2 of 3 + 18 × 5 ÷ 9.
2(1/3) + 2(5/6) – 1(1/2) = ? – 6(1/6)
Find the simplified value of the given expression:
{16 of 13 - 72 + √441 - (3/4) X 64} ÷ (102 ÷ 17)
(180 ÷ 22 ) ÷ (60% of 30) = (? ÷ 2)