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A man covers half of his journey as 6 km/h and the remaining half at 3 km/h. His average speed is
Concept: undefined >> undefined
A goods train is 800 meters long and it is running at a constant speed of 60 km/per hour. If it takes 120 seconds to pass a bridge, then calculate the length of the bridge?
Concept: undefined >> undefined
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It takes eight hours for a 600 km journey. if 120 km is done by train and the rest by car. It takes 20 min more if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the cars is
Concept: undefined >> undefined
If `(9/7)3 x (49/81)2x-6 =(7/9)9`, then the value of x is:
Concept: undefined >> undefined
What is the value of (x) in the following equation?
x0.4 , 16 = 32 , x2.6
Concept: undefined >> undefined
The simplified value of [(0.111)3 + (0.222)3 - (0.333)3 + (0.333)2 × (0.222)]3 is :
Concept: undefined >> undefined
When `2 1/2`, is added to a number and the sum is multiplied by `4 1/2`, and then 3 is added to the product and then the sum is divided by `1 1/5`. the quotient becomes 25. What is that number?
Concept: undefined >> undefined
If x = (163 + 173 + 183 + 193), then x divided by 70 leaves a remainder of...
Concept: undefined >> undefined
What are the last two digits of 72008?
Concept: undefined >> undefined
A student was asked to simplify the expression: `(0.1216 xx 0.105 xx 0.0002)/(0.625 xx 0.08512 xx 0.039 xx 0.16)` his answer was `1/65.` What is the difference between his answer and the correct answer?
Concept: undefined >> undefined
Simplify
`[(0.333)^3/(0.111)^2-(0.222)^4/(0.111)^3]`
Concept: undefined >> undefined
287 x 287 + 269 x 269-2 x 287 x 269 = ?
Concept: undefined >> undefined
If `114/0.144 = 14.4/x`, then the value of x is
Concept: undefined >> undefined
3889 + 12.952 - ? = 3854.002
Concept: undefined >> undefined
(1000)9 ÷ (10)24 =?
Concept: undefined >> undefined
`((489 + 375)^2-(489 - 375)^2)/((489×375))` = ?
Concept: undefined >> undefined
Simplify `(7/2÷5/2xx3/2)/(7/2÷5/2xx3/2`÷ 5.25
Concept: undefined >> undefined
Simplify 1 + `1/(2+1/(3+1/3))`
Concept: undefined >> undefined
The square root of 64009 is
Concept: undefined >> undefined
