Today is Arif's 12th birthday and his father's 40th birthday. How many years from today will Arif's father be twice as old as Arif at that time?
A. 12
B. 36
C. 18
D. 16
সঠিক উত্তরঃ
D.
16
Explanation:
Related Questions (Any University/Year)
- A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is:
- Bill can hammer 20 nails in 6 minutes. Jeff can do the same job in only 5 minutes. How long will it take them to finish if Bill hammers the first 5 nails, then Jeff hammers for 3 minutes then Bill finishes the job?
- 1, 2, 6, 7, 9: A 3-digit integer is to be formed from the digits listed above. If the first digit must be odd, either the second or the third digit must be 2, and no digit may be repeated, how many such integers are possible?
- One copy machine can make 20 copies a minute, and a second copy machine makes 15 copies a minute. If the two copies work together, how long would it take them to make 2100 copies?
- The difference between two positive numbers is 16. If the smaller of those two numbers is 3/5th of the larger, what is the value of the smaller number?
- If 16% of 40% of a number is 8, the number is :
- At Lions High school 100 students are taking chemistry and 80 students are taking Biology. If 20 students are taking both chemistry and Biology , what is the ratio of the students taking only chemistry to the number taking only Biology?
- 15 workers can finish a job in 12 days. They work for 4 days, after which 5 additional workers join the team. In how many days will all of them together complete the remaining job?
- Jamal is now 7 times as old as Jashim. If 10 years from now, he will be 3 times as old as Jashim, how old is Jamal now?
- The front wheels of a wagon are 7 feet in circumference and the rear wheels are 9 feet in circumference. When the front wheels have made 10 more revolutions than the rear wheels, what distance has the wagon gone?
- The ratio of boys and girls in a school is 9:5.If the total number of students in the school is 1050.Then number of boys is
- Instructions: DO NOT USE CALCULATOR. Figures are not drawn to scale. If \(x > y > 1\), which of the following must be greater than x?
- Hisham can now purchase 5 more apples with Tk. 75 because of reduction in price by 20%.Calculate the previous price of one dozen of apples.
- (3 × 104)+(2 × 102)+(4 × 10)=
- Thirty percent of the members of a swimming club have passed the lifesaving test. Among the members who have not passed the test, 12 have taken the preparatory course and 30 have not. How many members are there in the swimming club?
- 42 m দৈর্ঘ্যের রাস্তায় 2m অন্তর একটি করে চারা লাগালে কতটি চারা লাগবে?
- If 12 men can reap 120 acres of land in 36 days, how many acres of land can 54 men reap in 54 days?
- The ratio of marbles owned by X and Y is 8:3. If X gives 8 marbles to Y, the ratio becomes 6:5. How many marbles does X have?
- Karim takes 2 days longer than Rahim to produce x units of products. At these rates, Karim & Rahim together take 2 days to produce \(5/6^{th}\) of x units. How many days would Karim take to produce 3x units of this product?
- Real Madrid has won 40 games out of 60 played. It has 32 more games to play. How many of these must the team win to make its record 75% win for the season?