Question
Two individuals, 'A' and 'B', set off towards each other
from points 'P' and 'Q', respectively. 'A' moves at a speed of (x + 8) km/hr, while 'B' travels at (x - 2) km/hr. When they meet, the ratio of the distances covered by 'A' and 'B' is 12:7. Determine the value of 'x'.Solution
Since, the time taken by them will be equal. Therefore, ratio of the speeds will be same as that of the distance travelled
According to the question,
(x + 8)/(x – 2) = 12/7
Or, 7x + 56 = 12x – 24
Or, 5x = 80
Or, x = 80/5 = 16
Arvind sold 40% more apples than Vishnu. Ratio of number of apples sold by Vishnu to number of apples sold by Bishwa is 4:7. Find the number of apples s...
A towel was 75 cm long and 120cm broad. When bleached, it was to have lost 40% of its length and 20% breadth. The percentage of decrease in area is:
In a train, 40% of the passengers are females. Out of total number of passengers, 60% have unreserved tickets out of which 20% are females. How much per...
If 40% of 70 is x% more than 30% of 80, then find 'x'.
A invested a certain amount in Debt and Equity mutual funds in the ratio of 3: 7 respectively. At the end of one year, he earned a total dividend of 30%...
In an exam of 200 marks, a student scores 136 marks. What percent of marks did he score?
Raj saves Rs. 3000 more if he spends 65% of his income instead of 85%. Find the savings of Sanjay whose income is 20% more than that of Raj, and spends ...
In a school, 30% of the students are not participating in any competition. 80% of the students who are participating in the competition are girls. If 42...
In a competitive examination, 70% of candidates pass and 480 candidates fail, then how many total candidates appeared in the examination?
Arun’s salary is first increased by 20% and then decreased by 25%. The result is the same as Varun’s salary increased by 40% and then reduced by 20%...
Relevant for Exams:
