১৩৫৪১
One-third of Ratan's investment in National Savings Certificate is equal to one-half of his investment in FDR. If he has Tk. 1,50,000 as total investment. how much he invested in savings certificate?
উত্তর
Tk. 90,000
১৩৫৪২
A man bought some eggs of which 10% are rotten. He gives 80% of the remainder to his neighbor. Now he is left out with 36 eggs. How many eggs he bought?
উত্তর
200
১৩৫৪৩
The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is-
উত্তর
20
১৩৫৪৪
The sum of the ages of the father and son is 80 years. If ten years ago the age of father was three times that of his son, find the present age of the son.
উত্তর
25
১৩৫৪৫
The monthly incomes of two persons are in the ratio 4 : 5 and their monthly expenditures are in the ratio of 7 : 9. If each saves BDT 50 per month, find their monthly income.
উত্তর
400 and 500
১৩৫৪৬
Simple interest on a certain sum at the rate of 4.5% p.a for 4 years and 6 years differs by BDT 216. The sum is-
উত্তর
BDT 2400
১৩৫৪৮
The present ratio of students to teachers at a certain school is 30 to 1. If the student enrollment were to increase by 50 students and the numbers of teachers were to increase by 5, the ratio of students would then be 25 to 1. What is the present number of teachers?
উত্তর
15
১৩৫৪৯
A worker was hired for 7 days. Each day, he was paid Tk. 10 more than what he was paid for the previous day of work. the total amount he was paid in the first 4 days of work equaled the total amount he was paid in the last 3 days. What was his staring pay?
উত্তর
Tk. 90
১৩৫৫০
The average daily wage of 10 workers is Tk. 400. if the lowest wage is Tk. 300, then what is the possible maximum wage?
উত্তর
1300