The average of the two-digit numbers, which remain the same when the digits interchange their positions , is?🔗 বিস্তারিত
ক 22
খ 35
গ 55
ঘ 79
✅ সঠিক উত্তর: 55
উত্তর: 55
49
Tanya’s grandfather was 8 times older to her 16 years ago . He would bi 3 times of her age 8 years from now . Eight years ago, what was the ratio of Tanya’s age to that of her grandfather?🔗 বিস্তারিত
ক 1:2
খ 1:5
গ 3:8
ঘ None of these
✅ সঠিক উত্তর: None of these
উত্তর: None of these
50
The total age of A and B is years more than the total age of B and C. C is how many years younger than A?🔗 বিস্তারিত
ক 12
খ 55
গ 86
ঘ none of these
✅ সঠিক উত্তর: 12
উত্তর: 12
51
The simple interest on a sum of money will be TK. 600 after 10 years. If the principal is trebled after 5 years , what will be the total interest at the end of the tenth year?🔗 বিস্তারিত
ক 600
খ 900
গ 1200
ঘ 1500
✅ সঠিক উত্তর: 1200
উত্তর: 1200
52
If the compound interest on a sum for 2 years at 12.5% per annum is TK. 510 the simple interest on the same at the same rate for the same period of time is?🔗 বিস্তারিত
Sixty-five percent of a number is 21 less than four-fifth of that number. What is the number?🔗 বিস্তারিত
ক 140
খ 535
গ 765
ঘ 346
✅ সঠিক উত্তর: 140
উত্তর: 140
55
An article when sold at a gain of 5% yields TK. 15 more than when sold at a loss of 5% . Its cost price would be?🔗 বিস্তারিত
ক 150
খ 200
গ 250
ঘ 300
✅ সঠিক উত্তর: 150
উত্তর: 150
56
An express train travelled at an average speed of 100 km/hr, slopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point?🔗 বিস্তারিত
ক 6 hrs 24 min
খ 6 hrs 27 min
গ 6 hrs 30 min
ঘ 6 hrs 21 min
✅ সঠিক উত্তর: 6 hrs 21 min
উত্তর: 6 hrs 21 min
57
If 18 pumps can raise 2170 tonnes of water in 10 days , working 7 hours a day ; in how many days will 16 pumps raise 1736 tonnes of water , working 9 hours a day?🔗 বিস্তারিত
ক 5
খ 7
গ 8
ঘ 11
✅ সঠিক উত্তর: 7
উত্তর: 7
58
To fill a tank , 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is educed to two-fifth of its present/🔗 বিস্তারিত
ক 25
খ 757
গ 62.5
ঘ None of these
✅ সঠিক উত্তর: 62.5
উত্তর: 62.5
59
A man can do a piece of work in 5 days. But with the help of his son, he can do it in 3 days . In what time can the son do it alone?🔗 বিস্তারিত
ক 6.5 days
খ 7 days
গ 7.5 days
ঘ 8 days
✅ সঠিক উত্তর: 7.5 days
উত্তর: 7.5 days
60
Tow workers A and B are engaged to do a work . A working alone takes 8 hours more to complete the job than if both worked together . If B worked along, he would need 4.5 hours more to complete the job than they both working together . What time would they take to do the work together?🔗 বিস্তারিত
ক 4 hours
খ 5 hours
গ 6 hours
ঘ 7 hours
✅ সঠিক উত্তর: 4 hours
উত্তর: 4 hours
61
Two pipes A and B can fill a tank in 20 and 30 minutes respectively . If both the pipes are used together , then how long will it take to fill the tank?🔗 বিস্তারিত
ক 15 min
খ 25 min
গ 12 min
ঘ 50 min
✅ সঠিক উত্তর: 12 min
উত্তর: 12 min
62
A sum of TK. 53 is divided among A, B, C is such a way that A gets TK. 7 more than what B gets and B gets TK. 8 more than what C gets. The ratio of their shares is?🔗 বিস্তারিত
ক 16:9:18
খ 25:18:10
গ 18:25:10
ঘ 15:8:30
✅ সঠিক উত্তর: 25:18:10
উত্তর: 25:18:10
63
Three partners A, B, C start a business . Twice A’s capital is equal to thrice B’s capital and B’s capital is four times C’s capital . Out of a total profit of TK. 16,500 at the end of the year , B’s share is?🔗 বিস্তারিত