১৩৬৪১
There are 3 green, 4 orange and 5 white colour bulbs in a bag. If a bulb is picked at random, what is the probability of having either a green or a white bulb?
উত্তর
2/3
১৩৬৪২
In the figure, AD and BC are lines intersecting at O. What is the value of a?
উত্তর
15
১৩৬৪৩
The tax on a commodity is diminished by 10% and its consumption increases by 10%. Find the effects on revenue.
উত্তর
Decreases by 1%
১৩৬৪৪
There are two squares S 1 and S 2 . The ratio of their areas is 4 : 25. If the side of S 1 is 6 cm. What is the side of S 2 ?
উত্তর
15 cm
১৩৬৪৫
A is twice as good a workman as B and together they finish a piece of work in 1 day. A alone can finish the work in -
উত্তর
There is no correct answer
১৩৬৪৬
The average of two numbers is 62. If 2 is added to the smaller number, the ratio between the numbers becomes 1 : 2. What is the smaller number?
উত্তর
40
১৩৬৪৮
Two trains of equal length are running on parallel lines in the same direction at 46 km and 36 km per hour. The faster train passes the slower train in 36 seconds. The length of each train is-
উত্তর
50 m
১৩৬৪৯
n a mixture of 45 liters, the ratio of milk and water is 4 : 1. How much water must be added to make the mixture ratio 3 : 2?
উত্তর
15 liters
১৩৬৫০
In the figure above, if the perimeter of Δvzy is 17, what is the area of square region vwxy?
উত্তর
49