Oracle Algebra Quiz-1

Question 1

Time: 00:00:00
The ages of the two persons differ by 20 years. If 5 year ago, 
the older one be 5 times as old as the younger one,
then their present ages, in the year are:

25, 5

25, 5

30, 10

30, 10

35, 15

35, 15

50, 30

50, 30

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x-y=20;...........(1) x-5=5(y-5) ......... x-5y=-20.....(2) solev 1 and 2 we get x=30 and y=10

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Question 2

Time: 00:00:00
Naveen purchased two oranges, 3 apples, and 5 bananas and paid 
Rs 40. Had Naveen purchased 3 oranges, 5 apples and 9 bananas,
He would have to pay Rs 64. Gagan demanded only 1 orange, 1 apple,
and 1 banana. If Naveen purchased only what was demanded by Gagan,
then how much would he have paid (in Rs)?

 

16

16

28

28

36

36

24

24

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Let the cost of each orange, apple and banana be o, a and b respectively. Given, 2(o)+3a+5b=40 -------- (i) 3(o)+5a+9b=64-------- (ii) From 2(i) - (ii): ? o+a+b= 16

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Question 3

Time: 00:00:00
There are 10 stations on a railway line. The number of different journey
tickets that are required by the authorities is:

 

92

92

90

90

91

91

None of these

None of these

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A person from station 1 can travel to rest of the nine stations(He cannot travel from station A to A itself) so, station 1 can issue 9 tickets similarly station 2 can issue 9 tickets there are 10 stations and similarly every station issues 9 tickets therefore, 10*9=90

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Question 4

Time: 00:00:00
Sneh's age is 1/6th of her father's age. Sneh's father's age will be
twice of Vimal's age after 10 years. If Vimal's eighth birthday was
celebrated 2 years before, then what is Sneh's present age?

7 years

7 years

6 years

6 years

8 years

8 years

None of these

None of these

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S=F/6; .......... (1) F+10=2(V+10)...........(2) but, V-2=8..........(3) so, V=10; vimal\'s present age is 10 from (2), We get Sneh\'s father present age as 30 so, from equation (1) sneh\'s age is 5

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Question 5

Time: 00:00:00
If 1 added to the age of the elder sister, then the ratio of the ages
of two sisters becomes 0.5:1, but if 2 is subtracted from the age
of the younger one, the ratio becomes 1:3, the age of the younger
sister will be?

7 years

7 years

5 years

5 years

8 years

8 years

10 years

10 years

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Question 6

Time: 00:00:00
A man purchased 40 fruits; apples and oranges for Rs 17. 
Had he purchased as many as oranges as apples and as many apples
as oranges, he would have paid Rs 15. Find the cost of one pair
of an apple and an orange.

70 paisa

70 paisa

60 paisa

60 paisa

80 paisa

80 paisa

1 rupee

1 rupee

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Question 7

Time: 00:00:00
21 pencils and 29 pens cost Rs 79. But if the number of pencils and 
pens were interchanged, the cost would have reduced by Rs 8.
Find the cost of each pen.

Re 1

Re 1

Re 2

Re 2

Re 3

Re 3

Re 4

Re 4

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Question 8

Time: 00:00:00
A person buys 18 local tickets for Rs 110. Each first class ticket
costs Rs 10 and each second class ticket costs Rs 3.
What will another lot of 18 tickets in which the numbers of
first class and second class tickets are interchanged cost?

112

112

118

118

121

121

124

124

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let first class ticket be x and second class ticket be y x+y=18.......(1) 10x+3y=110........(2) solving (1) and (2) we get, x=8 and y=10 if number of tickets were interchanged i.e., 3x+10y the, 3(8)+10(10)=124 rs

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Question 9

Time: 00:00:00
Students of a class are made to stand in rows. If 4 students are extra 
in each row, there would be 2 rows less. If 4 students are less in
each row, there would be 4 more rows.
The number of students in the class is

90

90

92

92

94

94

96

96

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Question 10

Time: 00:00:00
Large, medium and small ships are used to bring water. 
4 large ships carry as much water as 7 small ships.

3 medium ships carry the same amount of water as 2 large ships
and 1 small ship.

15 large, 7 medium and 14 small ships, each made 36 journeys
and brought a certain quantity of water.

In how many journeys would 12 large, 14 medium and
21 small ships bring the same quantity?



 

32

32

29

29

49

49

25

25

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["0","40","60","80","100"]
["Need more practice! \n","Keep trying! \n","Not bad! \n","Good work! \n","Perfect! \n"]

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