A bus travels point P at 6:30 am and reaches point Q at 11:30 am. Another train leaves point Q at 8:30 am and reaches point P at 11 am. At what time would the two buses meet?
Let the distance be D km Speed of the 1st bus = D/5 km/hr Speed of the 2nd bus = (2 D)/5 km/hr Speed of 2nd bus = 2 × speed of 1st bus ∴ Distance travelled by 1st bus till 8:30 am = 2 × D/5 = (2 D)/5 Now, Distance between buses = D - (2 D)/5 = (3 D)/5 km Time taken = ((3 D)/5)/( D/5 + (2 D)/5 ) = 1 hour ∴ 8:30 am + 1 hour = 9:30 am
If 6$144 = 24, 8$232 = 29 then what is the value of 5$110 = ?
If '$ means +', '# means –, '@ means ×' and '* means ÷', then what is the value of ' 16 $ 4 @ 5 # 72 * 8 ' ?
...Select the correct combination of mathematical signs that can sequentially replace ‘*’ sign and balance the equation given below.
54 * 2 * 4 ...
Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
65 * 45 * 25 * 5 * 35 * 60
If ‘–‘ means ‘addition’, ‘+’ means ‘subtraction’, ‘÷ ‘ means ‘multiplication‘ and ‘×’ means ‘division’ , then find t...
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
32 * 366 * 6 * 2 * 134 = 20
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation:
76 *(5*8*4)*9*75
Select the correct combination of mathematical signs that can sequentially replace the sign * and make the equation correct.
5 * 14 * 6 * 8 * 9 * 502
If 65 + 54 = 2, 71 + 62 = 10, then 73 + 83 = ?
Which two signs should be interchanged to make the following equation correct?
5 × 8 ÷ 2 – 4 = 30 + 6