Question
Find the distance travelled (in km) by the truck to
reach point B from point A, if a car cover 45% the same distance in 2 hours 42 minutes and a truck covers 60% of the distance in 6 hours. The sum of speed of the car and truck is 160 km/hr.Solution
Let speed of car be s kmph Time taken by car travel total distance = 100/45 x 2.7 = 6 hrs Time taken by truck to cover total distance = 100/60 x 6 = 10 hrs so, s x 6 = (160 - s) x 10 6s = 1600 - 10s so, required distance = 100 x 6 = 600 km
If ‘÷’ means ‘addition’, ‘+’ means ‘subtraction’, ‘-’ means ‘multiplication’, and ‘x’ means ‘division’, what will be th...
If in a certain code language ‘+’ represents ‘×’, ‘–’ represents ‘+’, ‘×’ represents ‘÷’ and ‘÷’ represents ‘–’....
Select the combination of numbers that when placed sequentially in the blanks of the given series will complete the series.
r s _ u _ w x _ z _ s...
Which two signs should be interchanged in the following equation to make it correct?
24 + 12 ÷ 6 - 8 x 2 = 92
If ' X ' means '+', '+' means ' - ', ' - ' means '÷' and '÷' means ' X ', what will be the value of the following expression?
[{(84 - 3) ÷ ...
Which among the given operators should replace the “%” (in the same order) in the given expression below:
7 % 12 % 7 % 38 % 47 % 8
If '&' means '+', '*' means '-', '^' means 'X' and '!' means '÷', then what is the value of the following expression?
15 ^ 4 * 10 & 32 ! 8
Which one of the given mathematical operations will result in 291?
51.884 × 12.91 × 16.502 =?
After interchanging the given two signs, what will be the value of the given equation?
- and X
144 + 216 ÷ 8 - 12 X 175 + 34
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