Question
In a class of 40 students, the
average weight of the class is 65 kg, but when one of the students left from the school and 6 new students joined the class such that the average weight of the class becomes 64.8 kg. What is the weight of a student who is 3 kg more than the weight of the student who left from the school, if the total weight of six new students who joined the class is 390 kg?Solution
ATQ, Sum of weight of class = 40 * 65 = 2600 2600 - x + 390 = 64.8 * 45 2990 - x = 2916 x = 74 Required weight of the student = 74 + 3 = 77 kg
- Study the given pattern carefully and select the number that can replace the question mark [?] in it.
First row: 10, 6, 964
Second row: 7, 3... Find the missing number.
20, 30, 42, 56, 72, ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it. Â
First row: 4, 6, 18
Second row: 7...
Select the option that is related to the third term in the same way as the second term is related to the first term and sixth term is related to fifth ...
Select the number from among the given options that can replace the question mark (?) in the following table.
Find the missing letter.
In the following expression find the missing term:Â Â
Find the missing number from the given responses.
3 Â Â Â 5 Â Â Â 7
4 Â Â Â 6 Â Â Â 8
5 Â Â Â 7 Â Â Â 9
26...
Select the number from the given option that can replace the question mark (?) in the following series:
32, 16, 24, 60, ?, 945
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