A perfect square can never have the following digit at
ones place.
(a) 1 (b) 6 (c) 5 (d) 3
Which of the following is not a perfect square?
(a) 361 (b) 1156 (c) 1128 (d) 1681
How many natural numbers lie between 182 and 192?
(a) 30 (b) 37 (c) 35 (d) 36
Which of the following will have 1 at its units place?
(a) 192 (b) 172 (c) 182 (d) 162
Which of the following is the square of an odd number?
(a) 256 (b) 361 (c) 144 (d) 400
The following histogram shows the frequency distribution of teaching
experiences of 30 teachers in various schools:
(a) What is the class width?
(b) How many teachers are having the maximum teaching experience
and how many have the least teaching experience?
(c) How many teachers have teaching experience of 10 to 20 years?
In a hypothetical sample of 20 people, the amount of money (in
thousands of rupees) with each was found to be as follows:
114, 108, 100, 98, 101, 109, 117, 119, 126, 131, 136, 143, 156,
169, 182, 195, 207, 219, 235, 118.
Draw a histogram of the frequency distribution, taking one of the
class intervals as 50–100
+91 94284 01196
© Copyright 2025. Doubtora. All Rights Reserved
