Question
'A' and 'B' are running on a circular track of length
4000 metres. 'A' is running clockwise at 8 m/s while 'B' is running anti-clockwise at 10 m/s. Find the difference between the distance covered by 'A' and 'B' by the time they meet for the tenth time.Solution
ATQ, Time taken to meet for the first time = 4000 Γ· (8 + 10) = 250 seconds So, time taken to meet for 10th time = 250 Γ 10 = 2500 seconds So, distance covered by 'A' in 2500 seconds = 2500 Γ 8 = 20000 metres And distance covered by 'B' in 2500 seconds = 2500 Γ 10 = 25000 metres So, required difference = 25000 - 20000 = 5000 metres
32 × 3 (54 – 15) + 186 ÷ 3 ÷ 2 – (21)² = ?
17% of 250 + ? = 108
32 + 26 Γ (484 Γ· 44) + 450 Γ· 9 = ?Β
40 Γ 5 + 27) Γ 9 = ?
What will come in the place of question mark (?) in the given expression?
193...
116*2/3% of 18600 + 666*2/3% of 1290 = 457*1/7% of 1750 + 555*5/9% of 3150 + ?
What will come in the place of question mark (?) in the given expression?
β1296 + (2/3 of 45% of 480) = ?
- Determine the value of βpβ if p = β529 + β1444
120% of 250 + 110 + 135 Γ· 5 = ?