the ratio of white balls to black balls is 1:2. if 9 balls
are added then the ratio of the balls become 2:4:3. find
the number of black balls. a) 12 b) 6 c)9 d)none
- 7 Answers
- 20251 Views
- CTS, TCS, I also Faced
- E-Mail Answers
Answer Posted / sabarish
these are question tht are seem to be like it consumes
time. so dont see jus the question and run to the next .
ans. a) 12
if 9 balls are added then the ratio to the combination
becomes 2:4:3.
9 balls make the ratio 3 for grey balls in tht mixture.
so the factor is 9/3 = 3 (in tht mixture)
so the same factor has to be maintained through out the
ratio. so black balls is 4 * 3 = 12 and white balls is 2 *
3 = 6.
| Is This Answer Correct ? | 29 Yes | 4 No |
Post New Answer View All Answers
2 Oranges,3 bananas and 4 apples cost rs.15 . 3 Oranges 2 bananas 1 apple costs rs 10. What is the cost of 3 oranges, 3 bananas and 3 apples
a bus started from bus stand at 8.00am and after 30min staying at destination it returned back to the bus stand.the destination is 27 miles from the bus stand the speed of the bus 50percent fast speed at what time it returns to the bus stand.
A team P of 20 engineers can complete a task in 32 days. Another team Q of 16 engineers can complete the same task in 30 days. Then the ratio of working capacity of 1 member of P to that of a member of Q is:
Ms. Anurag Awasthi deposits an amount of Rs. 56500 to obtain a simple interest at the rats of 12% p.a. for 3 years. What total amount will Mr. Anurag Awasthi get at the end of 3 year?
What is the smallest number by which 4880 must be divided in order to make it into a perfect square ?
The price of raw materials has gone up by 15%, labour cost has also increased from 25% of the cost of raw material to 30% of the cost of raw material. By how much percentage should there be a reduction in the usage of raw materials so as to keep the cost same
three clocks where set to true time .First run with the exact time ..second slows one minute/day. third gains one minute/day. after how many days they will show true time.
A & B can do a piece of work in 21 & 24 days respectively. The started to work together but after some days BA leaves, B completes the remaining work in 9 days. After how many days does A leaves
One of the following is my secret word:AIM DUE MOD OAT TIE.With the list in front of you, if I were to tell you any one of my secret word, then you would be able to tell me the number of vowels in my secret word.Which is my secret word?
There are 1997 doors in the courts. 1997 people came out from each door. One door is closed. That many people came out from each door. This continues till a single person come out of the single open door. Find the no of people inside the court?
sir iam asking you assistant stastical officer previous question paper
A is twice efficient than B. A and B can both work together to complete a work in 7 days. Then find in how many days A alone can complete the work?
Integral B(Transpose)*sigma(here sigma means stress)*dV REPRESENTS?
Two persons start at the same point, walk in opposite directions with 5km/hr and 5.5km/hr respectively. What is the distance separated after 2 and half hrs?
There is square of side 6 cm .A circle is inscribed inside the square Find the ratio of area of circle to the squqre .
