[3/7] A 20 litre solution conatins oil and kerosene in the ratio 3:5,replace 4 litres of mixture with 4 li

For Competitive Exams

A 20 litre solution conatins oil and kerosene in the ratio 3:5,replace 4 litres of mixture with 4 litres of kerosene what will be the ratio of oil and kerosene?

1/7

3/7

1/6

1/8

Explanation:
When 4 liters are taken out of 20l, amount of oil in remaining 16 lt = 3/8 $\times$ 16 = 6 Hence the remaining 10 litres would be kerosene Now additional 4 litres of kerosene is added to the solution So total quantity of kerosene = 14 litres Ratio of oil:kerosene = 6/14 = 3/7

Additional Questions

A teacher can divide her class into groups into groups of 5,13 and 17. What is the smallest possible strength of the class?	Answer
If QUESTION = DOMESTIC what will b code for RESPONSE ?	Answer
A box contains 90 bolts each of 100 gm and 100 bolts each of 150 gm. If the entire box weighs 35.5 kg., then the weight of the empty box is :	Answer
The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member?	Answer
If the radius of a circle is increased by 20% then the area is increased by:	Answer
When Raja was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Raja’s brother is 6 years older than Raja and his mother is 3 years younger than his father, how old was Raja’s sister when Raja was born?	Answer
A man purchased a watch for Rs.400 and sold it at a gain of 20% of the selling price. The selling price of the watch is:	Answer
If 1111 = r 2222 = t 3333 = e 4444 = n 5555 = ?	Answer
A new apartment complex purchased 60 toilets and 20 shower heads. If the price of a toilet is three times the price of a shower head, what percent of the total cost was the cost of all the shower heads?	Answer
Find the smallest number which leaves 22,35, 48 and 61 as remainders when divided by 26, 39, 52 and 65 respectively.	Answer

Share with Friends