After taking 30 socks out of the washing machine, Shamim noticed that the ratio of blue socks to brown socks to black socks was 2:3:5. How many black socks were in the washing machine?
A. 21
B. 15
C. 9
D. 6
E. None of these
সঠিক উত্তরঃ
B.
15
Explanation:
Related Questions (Any University/Year)
- The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child ?
- In an election, 30% of the voters voted for candidate A whereas 60% of the remaining voted for candidate B. The remaining voters did not vote. If the difference between those who voted for candidate A and those who did not vote was 1200, how many individuals were eligible for casting vote in that election ?
- Point X is North of point Y , which is East of point Z. To which direction is point X with respect to point Z ?
- দুটি সংখ???যার গুণফল ৩৩৮০, এর গ.সা.গু ১৩, সংখ্যা দুটি ল.সা.গু কত?
- Find the number that should be placed in the gap of the series : 80, 96, -, 128
- যদি a+b=5 এবং a-b=3 হয়, তবে a2+b2= কত ?
- If n and p are both odd numbers, which of the following must be an even number?
- A number is as much greater than 36 as is less than 86.Find the number
- A=1005 এবং B= 5021 হলে কোনটি সত্য?
- L=23M , M=32N,L=16 , N এর মান কত?
- ৪২ গ্রাম ওজনের একটি গয়নায় সোনা ও তামার অনুপাত ৪ঃ৩। এতে আর কত সোনা মেশালে সোনা ও তামার অনুপাত ৫ঃ৩ হবে?
- Which branch had the worst performance in 2012 compared to its 2011 sales ?
- The length of a rectangular room is double of its breadth.If the area is 512 square inches , what is the perimeter ?
- How many centimeters make a meter ?
- পিতা ও ২ সন্তানের বয়সের গড় ৩৭ বছর। পিতা, মাতা ও ঐ ২ সন্তানের বয়সের গড় ৩৬ বছর। মাতার বয়স কত বছর?
- A box of chocolates is divided between two brothers, Asif and Siyam in a ratio of 15 : 7 and their difference is 16 chocolates. How many chocolates did Siyam get?
- Alim and Badrul enter in to a partnership and Alim invests Tk 10,000 in the partnership. At the end of 4 months he withdraws Tk 2000. At the end of another 5 month, he withdraws another Tk 3000. If Badrul receives Tk 9600 as his share of the total profit of Tk 19,100 for the year, how much did Badrul invest in the company?
- A solution that contains 20% sugar by weight is made sweeter by doubling the amount of sugar.The percent of sugar, by weight, in the new solution is --
- A car driver's income consists of his salary and tips. His salary is Tk. 50 a week. During one week his tips were 5/4 of his salary. What fraction of his income for the week came from tips?
- r > s > 0 ; Quantity A = rs / r and Quantity B = rs / s