Question
The least number 'Y' which when divided by 15, 20, and 45
leaves 2 as the remainder in each case. Find the value of ('3Y' - 5).Solution
ATQ,
As we know the least number which is divisible by 'a', 'b', and 'c' is the LCM of 'a', 'b', and 'c'.
So, the number which is completely divisible by 15, 20, and 45 = LCM of
15, 20, and 45 = 180
So, 'Y' = 180 + 2 = 182
Now,
(3Y - 5) = (182 × 3) - 5 = 546 - 5 = 541
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...
If the numerator of a fraction is increased by 16.66 % and denominator decreased by 14.28 % then, it becomes the reciprocal of itself. Find the original...
In an election between two candidates, winner got 65% of total valid votes. If total number of votes cast were 2000 out of which 6% were invalid, then f...
In an exam of 200 marks, a student scores 136 marks. What percent of marks did he score?
Heena decided to save 15% of her salary as fixed deposit. Later, she changed her mind and saved Rs 4800 which was 80% of what she had decided earlier. ...
The income of P is 4/5th of the income of Q and income of R is 60% more than the income of Q. Income of Q is Rs.20000 and expenditure of P is...
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...
Ravi spends 20% of his income on house rent, 30% on groceries, 50% of the remaining on entertainment, and saves the rest. If the amount spent on groceri...
- In a municipal election between two candidates, 12% of the total votes were declared invalid. Candidate 'X' secured 60% of the valid votes. If candidate 'Y...
Anil spends 20% of the monthly income on the reconstruction of his house, 15% on basic needs, 10% of the remaining on travelling. If he spends (100/9)% ...
