৩১২৮১
The persent 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 number of teachers were to increase by 5, the ratio of students to teachers would then be 25 to 1. What is the present number of teacher?
উত্তর
15
৩১২৮২
In an election, 30% of the voters voted for candidate A whereas 60% of the remaining voted for candidate B. The remaining voters did not vote. If the difference between those who voted for candidate A and those who did not vote was 1200, how many individuals were eligible for casting vote in that election?
উত্তর
60,000
৩১২৮৪
A watch which gains 5secons in 3 minutes was set a 7am. In the afternoon of the same day when the true time is 1pm,the watch will indicate-
উত্তর
1 : 10 pm
৩১২৮৫
The average wage of a worker during a fortnihgt comprising 15 consecutive working days was Taka 90 per day. During the first 7 days, his average wage was Taka 87 per day and the average wage during the last 7 days was Taka 92 per day. What was his wage on the 8th day?
উত্তর
97
৩১২৮৭
The speeds of three cars are in the ratio 2: 3: 4. The ratio of the times taken by these cars to travel the same distance is ----
উত্তর
6 : 4 : 3
৩১২৮৮
when a truck travels at 60 miles per hour, it uses 30 percent more gasoline to travel andy distance than it does when it travels at 50 miles per hour. The truck can travel 20 miles on a gallon of gas if it is travelling at 50 miles per hour. The truck has only 10 gallons of gas and is 160 miles from its destination. It takes 20 minutes for the truck to stop for gas. How long will it take the truck to reach its final destination if it is driven at 60 miles per hour?
উত্তর
180 minutes
৩১২৮৯
Shajib takes 3 minutes to inspect a car, and Rajib takes 4 minutes to inspect a car. If they both start inspecting different cars at 8:30 AM, what would be the ratio of the number of cars inspected by Shajib and Rajib by 8: 54 Am of the same day?
উত্তর
4 : 3
৩১২৯০
which of the following cannot be expressed as the sum of two or more consecutive positive integers?
উত্তর
17