. The number of students in each section of a school is 24. After admitting new students, three new sections were started Now, the total number of sections is 16 and there are 21 students in each section. How many new students were admitted?
A. 24
B. 14
C. 48
D. 44
E. 32
সঠিক উত্তরঃ
A.
24
Explanation:
Related Questions (Any University/Year)
- A & B are two towns. Farooq covers the distance from A to B on cycle at 16 km/hr. however he covers the 'distance from B to A on foot at g km/hr. his average speed during the whole journey is:
- The average of 5 consecutive integers starting with m as the first integer is n. What is the average of 9 consecutive integers that start with n (in terms of m)?
- If y% of x is 29. Then x=?
- How much will it cost to fence a field that is 12 feet long and 42 feet wide with fence that costs tk 10 a yard?
- The difference between a number and its three-fifth is 50. what is the number?
- Alam can do a job in 3 hours. Bipu can do the same work in 20% lesser time but he charges 30% per hour more than Alam does. Alam works for 1 hour and the rest is completed by Bipu. If Alam receives 100 TK , how much did Bipu receive?
- If 5 students run a mile in 5 minutes, how much time will 50 students take to run a mile?
- Two motorists start from the same point at the same time... Find the rate of speed for each motorist.
- A class of 50 girls and 60 boys sponsored a football game. If 52% of the girls and 30% of the boys attended the game, what percentage of the class went to the game?
- A car must complete a 180-km trips in 4 hours. If he averages 50 km an hour for the first three hours of his trip, how fast must he travel in the final hour?
- 4 জন তাঁতী 4 দিনে 4টি মাদুর তৈরি করতে পারে। একই হারে ৪ জন তাঁতী ৪ দিনে কতটি মাদুর তৈরি করতে পারবে?
- If Robert can sell 40 envelopes in 1 minute and Paul can do the same job in 80 seconds how many minutes ( to the nearest minute) it will take the two of them working together, to seal 350 envelopes?
- A 60 litre mixture of sugar and water contains sugar and water in the ratio 2:3. How many litres of the mixture should be replaced by sugar so that the ratio of sugar and water become 1:1?
- একটি পুকুরে কচুরিপানা প্রতিদিন দ্বিগুণ হারে বৃদ্ধি পায়। যদি পুকুরটি কচুরিপানা দিয়ে ভরে যেতে ২৮ দিন লাগে তবে অর্ধেক পুকুরটি ভরে যেতে কত দিন লাগবে?
- The ratio of quantity of water in fresh fruit to that of dry fruits is 7 : 2 . If 400 km of dry fruits contain 50 km of water then find the weight of the water in same fruits when they were fresh?
- A train left Dhaka for Chittagong at 62 km per hour and at the same time another train left Chittagong for Dhaka at 48 km per hour on the same route. How far apart were the two trains one hour before they met?
- In a store, the ratio of red socks to green socks is 3:2. The socks are made of either cotton or wool. If 60% of the red socks are made of cotton and 80% of the green aocks are made of wool, what percentages of socks are made of cotton?
- Sabina needs to make a cake and some cookies. The cake requires 3/8 cup of sugar and the cookies require 3/5 cup of sugar. Sabina has 15/16 cup of sugar. Does she have enough sugar, or how much more does she need?
- Jeff takes 20 minutes to jog around the race course one sme, and 25 minutes to jog around a second time. What is his average speed in miles per hour for the whole jog if the course it 3 miles long?
- Seven kg of mangoes cost as much as 10 kg of apples and 1 kg of oranges. 7 kg at oranges cost as much as 1 kg of mangoes and 2 kg of apples. How many kg of apples can be purchased by the amount of money required to purchase 12 kg of mangoes?
- The electric company charge: Tk 0.3 per KWH. Rahim used 2800 KWH in April, 3200 KWH in May, and 3600 KWH in June. What was his average costs of electricity in taka for the 3 months?
- The average age of a man and his son is 20. After 10 years, their age will be in the ratio 2:1. What was the age of the man and his son 5 years ago respectively?
- The Value Added Tax of retail sales is 5% If a customer pays BDT 150 VAT. then what is the value of his / her total shopping bill ?
- Saim is now 14 years older than Siam. In 10 years, Saim will be twice as old as Siam.How old will Saim be in 7 years?
- If a and b possible integers and (a1/2b1/3)6 =432, what is the value of ab?
