১২৫১১
Two-fifth of one-fourth of three seventh of a number is 15. What is the half of the number?
উত্তর
175
১২৫১২
A gas tank is 1/5th full and requires 32 gallons more to make it 3/7 full. What is the capacity of the tank?
উত্তর
140 gallons
১২৫১৩
A and B can do a piece of work in 9 days, B and C in 12 days, A and C in 18 days. If all of them work together, then how much time will they take to finish the same work?
উত্তর
8
১২৫১৪
A family had provision of food for 15 days. After 5 days 8 guests came and the provision lasted 6 days. How many are the members of the family?
উত্তর
12
১২৫১৫
Two Motorists drove their cars at a speed of 45 km per hour and 50 km per hour respectively. One car took 10 minutes longer than the other to travel a distance. Find the distance travelled. 15 km 12 km 18 km 20 km
উত্তর
75 km
১২৫১৬
In a class 75% passed in English, 60% passed in Mathematics & 25% failed in both subjects. What is the percentage who passed in both subjects?
উত্তর
60%
১২৫১৭
A person make a profit of 10% on 25% of the quantity and a loss of 20% on the rest of the quantity. What is the gain or loss in percentage on the whole?
উত্তর
12.5%
১২৫১৮
Increasing the original price of an item by 10%, then decreasing by 20% and then again increasing the price by 10% is equivalent to:
উত্তর
3.2% decrease
১২৫১৯
In a row of trees, a tree is 7th from the left and 14th from the right end. How many trees are there in the row?
উত্তর
20
১২৫২০
The average age of 12 children is 15 years. If another child comes, the average age comes to 13. What is the age of the new child?
উত্তর
11 years