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16km = 16000 m A makes it around the track 10 times (16000/1600) in an hour Similarly B = 15 times and C = 20 times in an hour In 60 minutes, A will complete track once every 6 minutes, B once every 4 minutes and C once every 3 minutes LCM of A,B,C is 12 IXAMBEE APPROACH: Time = Distance/Speed Time for A = 1.6/16 hours Time for B = 1.6/24 hours Time for C = 1.6/32 hours LCM of A,B,C = (LCM of numerator)/(HCF of Denominator) = (LCM of 1.6,1.6,1.6)/(HCF of 16,24,32) = 1.6/8 hours 1.6/8 hours = 12 minutes
√1369 + √1024 + √841 =(?)2 − 46
(144 ÷ 4)² × (72 ÷ 12)³ = 12 ×? × (25920 ÷10)
[192 ÷ 6 × 5] ÷ (? + 3) = 20
What will come in the place of question mark (?) in the given expression?
(30 × 5 + 20) × 2 = ?
(21 X 5) + ? = (480 - 120) ÷ 3
5555 ÷ 11 ÷ 5 = 100 + ?
5 + 2 × 3 ÷ (3 × 2) ÷ 4
[4(1/2) + 4(1/3)] × 12 – 42 = ?2
[1.45 X 1.45 X 1.45 + 0.55 X 0.55 X 0.55 + 4.785] = ?