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?
A. 15,5
B. 25,15
C. 25,5
D. 15,10
E. None
সঠিক উত্তরঃ
C.
25,5
Explanation:
Related Questions (Any University/Year)
- ৬ হচ্ছে একটি সংখ্যার ২৪%, তাহলে একই সংখ্যার ৪০ হবে?
- A bookstore lists a novel at such a price that after giving a discount of 30% on the listed price (including tax) it earns a profit of 40%. If enlisted price of the novel including tax is Tk. 460, then what is the cost price of the novel?
- A painter used one-fourth of her paint on one room and one-third of her paint on a second room. If she had 10 gallons of paint left after painting the second room, how many gallons did she have when she began?
- 64 এর 75% এর এক-তৃতীয়াংশ সমান কত ?
- The difference of the squares of two consecutive odd numbers is 84. What is the sum of the two numbers?
- In a pickup van, in addition to 50 hens, there are 45 goats and 8 camels with some keepers. If the total number of their feet be 224 more than the number of their heads in the van, find out the number of keepers in the van.
- Lamisa's age is 5 years more than twice Gallb's age. Zihan's age is 13 years less than 10 times Galib's age. If Zihan is 3 times as old as Lamisa, how old is Lamisa?
- If a and b are possible integers and (a1/2 b1/3)6= 432, what is the value of ab?
- তিনটি সংখ্যার গড় হচ্ছে ৬ এবং চারটি সংখ্যার ( পূর্বের তিনটিসহ) গড় হচ্ছে ৮ । চতুর্থ সংখ্যাটির অর্ধেক কত.হবে?
- যদি একজন পুরুষ অথবা দুইজন মহিলা অথবা তিনজন বালক একটি কাজ ৬৬ দিনে শেষ করতে পারে, তবে কত দিনে ১ জন পুরুষ, ২ জন মহিলা ও ৩ জন বালক ঐ কাজটি সম্পন্ন করতে পারবে?
- The average mark obtain by 10 students was 6 and the average mark obtained by 6 students was 17. What was the average mark obtained by all 16 students ___.
- If x #0, then (x+7)/7x-1/x = ?
- A company rents parking spaces at the rate of Tk. 100 per week or Tk. 300 per month. How much does a person save in a year (in Taka) by renting by month rather than by week?
- A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work is:
- যদি x : y=২ : ৩ এবং y : z=৪ : ৫ হয়, তাহলে x : y : z = ?
- ৫ জন পুরুষ বা ৮ জন স্ত্রীলোক একটি কাজ ১৪ দিনে শেষ করতে পারলে ১০ জন পুরুষ ও ১২ জন স্ত্রীলোক একরে কত দিনে কাজটি শেষ করতে পারবে ?
- The average weight of 3 men is 53 kg. None of them weighs less than 51 kg. What is tha maximum possible weight (in kg of a person in that group?
- কাগজের প্রতি পাতা বিক্রি হয় ২১ পয়সায়। চার পাতা কত পয়সায় বিক্রি হবে।
- A nut mixture consists of peanuts,pistachios and macadamia nuts in the ratio 5:3:2, recpectively,by weight.What amount of pistachios will be in 40 pounds of the mixture?
- Jo's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1, what is the ratio of US to British stamps?