Arithmetic-Numbers and Counting [IAS (Admin.) Prelims CSAT Paper 2 (in English)]: Questions 5 - 9 of 124
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Question 5
Appeared in Year: 2017
Question MCQ▾
Certain 3-digit numbers have the following characteristics:
1. All the three digits are different.
2. The number is divisible by 7.
3. The number on reversing the digits is also divisible by 7.
How many such 3-digit numbers are there?
Choices
Choice (4) | Response | |
---|---|---|
a. | 8 | |
b. | 4 | |
c. | 2 | |
d. | 6 |
Question 6
Appeared in Year: 2015
Question MCQ▾
In a parking area, the total number of wheels of all the cars (four-wheelers) and scooters/motorbikes (two-wheelers) is 100 more than twice the number of parked vehicles. The number of cars parked is
Choices
Choice (4) | Response | |
---|---|---|
a. | 50 | |
b. | 35 | |
c. | 55 | |
d. | 45 |
Question 7
Appeared in Year: 2016
Question MCQ▾
If R and S are different integers both divisible by 5, then which of the following is not necessarily true?
Choices
Choice (4) | Response | |
---|---|---|
a. | R - S is divisible by 5 | |
b. | R x S is divisible by 25 | |
c. | R + S is divisible by 10 | |
d. | R-2 + S-2 is divisible by 5 |
Question 8
Appeared in Year: 2015
Question MCQ▾
If ABC DEED = ABCABC; where A, B, C, D and E are different digits, what are the values of D and E?
Choices
Choice (4) | Response | |
---|---|---|
a. | D = 2, E = 0 | |
b. | D = 0, E = 1 | |
c. | D = 1, E = 0 | |
d. | D = 1, E = 2 |
Question 9
Appeared in Year: 2016
Question MCQ▾
In aid of charity, every student in a class contributes as many rupees as the number of students in that class. With the additional contribution of by one student only, the total collection is . Then how many students are there in the class?
Choices
Choice (4) | Response | |
---|---|---|
a. | 43 | |
b. | 45 | |
c. | 21 | |
d. | 12 |