Ratio and Proportion
A bag contains 50 p, 25 P and 10 p coins in the ratio 3: 5: 7, amounting to Rs 345. Find the number of coins of each type.
(a.) 300, 200,600
(e.) None of these
Two number P and Q are such that sum of 60% of P and 30% of Q is equal to the 50% of sum of P and Q. Find the ratio of Q : P.
(a.) 1 : 2
(b.) 2 :1
(c.) 3 : 2
(d.) 2 : 3
(e.) 2 : 5
Please find the answer
60% of P + 30% of Q =50%(P+Q)
Consider n a 2 digit number such that the ratio of the number to the sum of its digit is maximum. How many such numbers exist?
Sheetal has only three types of earrings- Gold, Diamond and Silver. All her earrings except X are Diamond, all except Y are Gold and all except Z are Silver. If the ratio of X:Y:Z = 25:12:17, then what is the ratio of the number of Gold earrings to the number of Silver earrings?
Three brothers A, B and C, work together in a company and their total monthly salary is Rs. 25000 per month. They spend 75%, 80%, and 90% of their income respectively. And their saving are in the ratio of 25:18:6.
find individual salary of all three?
In two alloys, respective ratios of copper and zinc are 4 : 1 and 1 : 3. Ten kg of the 1st alloy, 16 kg of the 2nd alloy and some quantity of pure copper are melted together. In the resultant alloy the ratio of copper to zinc is 3 : 2. Find the weight (in kg) of the new alloy.
How to handle such problems?
Sir , kindly share the solution to this problem-
At the NSB demonstration , supporters of Ms. P outnumbered the police by 9:1. The police arrested 135 NSB supporters averaging 5 for every 3 policemen. How many supporters of NSB were there in the demonstration?
Sahil employ 200 men to build a building. They finish 5/6of work in 10 weeks. Because of some natural calamity not only does the work remain suspended for 4 weeks but also half of work already done is washed away. After the calamity , when work is resumed, only 140 men turn up. The total time in which contractor is able to complete the work assuming that there are no further disruptions in the schdule is
a 25 weeks
d 20 weeks
concentrations of three types of milks X,Y and Z are 10%, 20%and 30% respectively. They are mixed in ratio 2:3:P resulting in a 23% concentration solution. Find P
The cost of an article (which is composed of raw materials and wages) was 3 times the value of the raw materials used. The cost of raw materials oncreased in the ratio 3:7 and wages increased in the ratio 4:9 . Find the present cost of article if its original cost was 18