Monday , January 25 2021

# 10th Math Periodic Test I (2018-19)

## 10th Math Periodic Test I (2018-19)

School Name: St. Gregorios School, Plot No. 12, Sector 11, Dwarka, New Delhi 110075 India
Class: X
Max. Marks: 20
Time: 45 minutes
Date: 07/07/2018

x
2
4
6
10
p+5
y
3
2
3
1
2

#### Question: 3. For what values of ‘k’ will the following pair of linear equations have infinitely many solutions

Kx + 3y – (k – 3) = 0
12x + ky – k = 0

#### Question: 6. The distribution below shows the number of wickets taken by bowlers inn one-day cricket matches. Find the mean number of wickets by step deviation method. (3×5 = 15)

No. of wickets = 20 – 60
60 – 100
100 – 150
150 – 250
250 – 350
350 – 450
No. of bowlers = 7
5
16
12
2
3

#### Question: 7. Solve for x and y

a2                       b2
—–       –         —— = 0
X                         Y

a2                       b2
—–       –         —— = a+b;        x, y ≠ 0
X                         Y

#### Question: 8. The ages of employees in a factory are given below. Find the modal age of the employees in that factory

Age of employees (in years)
No. of employees (in factory)
20 – 30
30 – 40
40 – 50
50 – 60
60 – 70
8
40
58
90
83

#### Question: 10. The following distribution gives the daily income of 50 workers in an office

Daily income (in Rs)
100 – 120
120 – 140
140 – 160
160 – 180
180 – 200
No. of workers
12
14
8
6
10

Convert the distribution above to a less than type cumulative frequency distribution and find median graphically.

## 9th Science Mid Term Exam Question Paper (2019-20)

9th Science Mid Term Exam: Question Paper (2019-20) School Name: Himalayan Public School, Sector 13, …