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what value should come in place of (?) in the following questions?
125 x 625 ÷ 25 = 5(13 - ?)
53 x 54 ÷ 52 = 5(13 - ?)
7 – 2 = 13 - ?
? = 8
(56 x 0.25)4 ÷ (6860 ÷ 35)4 x (343 x 8)4 = (7 x 2)(?) +11
(7 x 2)4 ÷ {(7 x 2)2}4 x {(7 x 2)3}4 = (7 x 2)(x+11)
4 – 8 + 12 = x + 11
x = -11 + 8 = -3
(6 + 66 + 666 + 6666 + 66666) – [22 + {2320 – (256)1/2}1/2] =?
? = 6(1 + 11 + 111 + 1111 + 11111) – (22 + {2320 – 16)1/2}
? = 6(12345) – (22 + 48)
? = 74070 - 70 = 74000
[{(150% of 44) – 11} % of 660] % of 25 = (?) % of 165
[{66 - 11} % of 660] % of 25 = x % of 165
[55 % of 660] % of 25 = x % of 165
363 % of 25 = x % of 165
? = 9075/165 = 55
(1600/1000)6 ÷ (25.6/10)7 ÷ (1.024 x 4)3 = (1.6) (x-9)
(1.6)6 ÷ (1.6)14 x (1.6)9 = (1.6) (x-9)
6 – 14 + 9 = x – 9
x = 10
Directions For Questions
Study the following information carefully and answer the questions given below.
The given bar graph shows the number of students in five different colleges in 2013 to 2017.
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Which colleges have the same percentage growth of the number of students from 2016 to 2017?
The number of student percentage increased in A = (225 – 210)/210 * 100
= 7.14%
The number of student percentage increased in B = 150 – 125/125 * 100
= 20%
Number of student percentage increased in C = 90 – 75/75 * 100 = 20%
Number of student percentage increased in D = 80 – 75/75 * 100 = 6.67%
Number of student percentage increased in E = 75 – 60/60 * 100 = 25%
What is the ratio of the number of students from A, B and C together in 2014 to 2013?
Required ratio = (180 + 100 + 50): (150 + 90 + 45)
= 330: 285
= 22: 19
What is the ratio of the difference between the number of students in D and E together in 2015 to the difference between the number of students in D and E together in 2013?
Required ratio = (60 – 50): (40 – 30)
= 10: 10
= 1: 1
What is the percentage increase in the number of students in all the colleges together from 2016 to 2017?
Required percentage
= ((225 + 150 + 90 + 80 + 75) - (210 + 125 + 75 + 75 + 60))/(210 + 125 + 75 + 75 + 60) * 100
= 13.76%
What is the difference between the total number of students in B and C together and the total number of students in D and E together in all the years together?
Total number of students in B and C
= (90 + 100 + 120 + 125 + 150) + (45 + 50 + 60 + 75 + 90) = 905
Total number of students in D and E
= (40 + 55 + 60 + 75 + 80) + (30 + 40 + 50 + 60 + 75) = 565
Difference = 905 – 565 = 340
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