Monday, March 6, 2017

SSC Papers Algebra

SSC Papers for Practice Algebra Maharashtra Board


Q1. Attempt any 5 from the following  5 
1. Find next two terms of the following sequence : 2,5,8,11…..
2. If the roots of the quadratic equation are 5 and -7 find that quadratic equation
3. Write the sample space of two coins.
4. If  Dx = -18 and D = 3 are the values of the determinants for certain simultaneous equations in x and y find x
5. Following table shows frequency distribution of number of trees planted by students in the school .Find the lower boundary (L) of the modal class
No of trees planted
0- 10
10 – 20
20 - 30
30 – 40
40 – 50
No of students
30
70
100
70
40

     6. The  number of hours  spent by a school boy in different activities in a day is given below.Find the measure of central angle for the activity ‘school’
Activity
sleep
school
play
homework
other
Total
No of hours
8
7
2
4
3
24

Q2. Attempt any 4 from the following 8
1. Find the twenty fifth term of the A.P: 12,16,20,24
2. Find mode for the following data
C.I
85-100
100-115
115-130
130-145
Frequency
9
11
8
5
 3. Solve the following quadratic equation by factorization method 7x2 + 4x – 20= 0
4. Find k, if one of the roots of the quadratic equation kx2 – 7x +12 = 0 is 3
5. Without actually solving the simultaneous equations given below decide whether they have unique solution , no solution or infinitely many solutions  3x + 5y = 16 ; 4x – y = 6
6. A box contains 20 cards marked with the numbers 1 to 20 . one card is drawn from this box at random.What is the probability that the number on the card is a prime number?

Q3. Attempt any 3 from the following 9
1. How many three digit natural numbers are divisible by 4?
2. Solve the following quadratic equation by using formula method  7x + 1 = 6x2
3. Solve the following simultaneous equation 16 +  12 = 1; 8  - 12 = 7
                                                             x+y   x-y     x+y  x-y
4. A coin is tossed three times then find the probability of (i) getting exactly one tail (ii)getting no tail
5. Draw the histogram to represent the following data
  
Daily sales of stores in (Rs)
0 – 1000
1000- 2000
2000 – 3000
3000 – 4000
4000- 5000
Total
No. of days in a month
2
12
10
4
2
30


Q4. Attempt any 2 from the following  8
1. Find the four consecutive terms in an A.P whose sum is 12 and the sum of 3rd and 4th term is 14
2. Two dice are thrown .Find the probability of the events (i) The products of numbers on their upper face is 12
(ii) The sum of the numbers on their upper faces is multiple of 7
3. Draw the pie diagram for the following data.
Agriculture
Irrigation
Electricity
Industry
Communication
Others
25
15
15
30
10
5

Q5. Attempt any 2 from the following 10
1. A bus covers  a certain distance with uniform speed.if the speed of the bus would have been increased by 15 km/h.it would have taken two hours less to cover the same distance. And  if the speed of the bus would have been  decreased by 5 km/h it would have taken one hour more to cover  the same distance. Find the distance covered by the bus.
2. A boat takes 10 hours to travel 30km upstream and 44km downstream. But it takes 13 hours to travel 40km upstream and 55km downstream. Find the speed of the boat in still water and the speed of stream.
3. Calculate mean using step deviation method.

C.I
100-150
150-200
200-250
250-300
300-350
Frequency
2
7
10
7
6