Subject
Quantitative Aptitude
Topic
Number
A sum of Tk. 312 was divided among 100 boys and girls in such a way that each boy gets Tk. 60 and each girl Tk. 40, the number of girls is :
A sum of Tk. 312 was divided among 100 boys and girls in such a way that each boy gets Tk. 60 and each girl Tk. 40, the number of girls is :
ক)
35খ)
40গ)
60ঘ)
65Explanation
Let x be the number of boys and y be the number of girls. Given total number of boys and girls = 100 x+y=100 -------------- (i) A boy gets Taka 3.60 and a girl gets Taka 2.40 The amount given to 100 boys and girls = Taka 312 3.60x+2.40y=312 -------------- (ii) Solving (i) and (ii) 3.60x+3.60y=360 ------- Multiply (i) by 3.60 ⇒ 3.60x+2.40y=312 --------- (ii) 1.20y=48 y = 40Related questions
On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. The sum of the digits of N is:Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is:A number is as much greater than 36 as the less than Find the number.If one-third of one-fourth of a number is 15, then three-tenth of that number is:If the number 5 * 2 is divisible by 6, then * =?কাজের দিন ২ টাকা পাওনা এবং অনুপস্থিতির দিন ৫০ পয়সা জরিমানা এই শর্তে সেপ্টেম্বর মাসে ৪০ টাকা পেল। সে কত দিন কাজে উপস্থিত ছিল?476 ** 0 is divisible by both 3 and The non-zero digits in the hundred's and ten's places are respectively:The sum of two numbers is 25 and their difference is Find their product.