Question
In a hostel, the number of senior and junior students are
in the ratio 4:3. If the number of seniors was reduced by 32 and the juniors increased by 16, then both groups would have the same number of students. What was the original number of junior students?Solution
ATQ,
Let the number of senior and junior students be '4n' and '3n', respectively.
So, 4n - 32 = 3n + 16
Or, 'n' = 48
Therefore, number of junior students = 48 × 3 = 144
45, 166, 310, 480, 675, 900
14Â Â Â Â 15Â Â Â Â Â 24Â Â Â Â Â Â 50Â Â Â Â Â Â 98Â Â Â Â Â 179
...126Â Â Â Â Â 130 Â Â Â Â Â 114 Â Â Â Â Â Â 150Â Â Â Â Â 82 Â Â Â Â Â 186 Â Â Â Â Â 42
...- Find the wrong number in the given number series.
8, 14, 24, 49, 59, 84 - Find the wrong number in the given number series.
12, 28, 60, 108, 172, 260 - Find the wrong number in the given number series.
25, 36, 29, 40, 33, 50 In each of the following giving number series, a wrong number is given. Find out the wrong number?
3023, 3132, 3246, 3356, 3471
Find the wrong number in given number series.
1500, 1450, 1390, 1350, 1240, 1150
Find the wrong number in the given number series.
4, 8, 24, 84, 480, 2880
191 341 221 331 251 281