Directions: (1-5) Study the following bar graph carefully and answer the given question. The following bar graph shows the no. of students in different branches of 5 engineering college in 2016.
Q1. What is the ratio of IT students from college C and D together to mechanical students from college B and E together in 2016.
Q2. If 25% IT students in college A and C in 2017 changed branch from IT to mechanical, then IT students are how much percent of mechanical student in 2017 in college A and C together.
Q3. Find the difference of Average students of all branches of college A and College C
Average of students of all branches of college C = (140+80+120)/3=340/3
Required difference =340/3-310/3 =30/3=10
Q4. If ratio of boy to girl student in each college is 7 : 3, 3 : 2 and 4 : 1 for IT, civil and mechanical respectively, then find the difference of total female student from college B to total male students of college E
= 36 + 30 + 18 = 74 Male students from college E =90×7/10+140×4/5+70×3/5
= 63 + 112 + 42 = 217 Required difference = 217 – 74 = 143
Q5. Total civil students are how much percent less than total IT students in these five colleges
Total civil students = 60 + 50 + 140 + 70 + 70 = 390
Required percent =(450-390)/450×100 =13⅓%
Directions (6-10): What will come in place of question mark (?) in the following questions?
Q6. 112, 225, 345, 479, 634, ?
Q7. 516, 514, 502, 472, 416, ?
Q8. 12, 11, 18, 45, 164, ?
11 × 2 – 2² = 18
18 × 3 – 3² = 45
45 × 4 – 4² = 164
164 × 5 – 5² = 795
Q9. 28, 15, 17, 28.5, 61, ?
15 × 1 + 2 = 17
17 × 1.5 + 3= 28.5
28.5 × 2 + 4 = 61
61 × 2.5 + 5 = 157.5
Q10. 71, 91, 117, 155, 217, ?
Directions (11-15): What approximate value will come in place of question mark (?) in following questions?
Q11. 5144.98 + 3449.95 – 4559.98 =?
Q12. 49.98% of ? – 2/3 of 243.02 = 49.94
?×50/100=50+162 ⇒
?=424
Q13. 1.007 + 2.0008 + 30.09 ÷ 10 – 5.99 = ?
? = 6 – 6 = 0
Q14. 44.95% of 599.98 + 34.98% of 299.98 = ?
? = 270+105 =375
Q15. √441.13÷2.96+√(?)=46.98
√(?)=47-21/3=40
⇒ ? = 1600
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