CTET Government Jobs Exams Logical Reasoning General Mental Ability

Q. How many 4-digit numbers are there in the Hindu-Arabic Numeration system ?

Option
(1) 99
(2) 8999
(3) 9999
(4) 9000

Read Solution (Total 3)

4 digits number starts from 1000 & ends at 9999
so total no. of 4-digit numbers = (9999-1000)+1= 8999+1 = 9000
option(4)
10 years agoHelpfull: Yes(2) No(1)

4 because it round up the number
9 years agoHelpfull: Yes(0) No(0)
9999-999=9000
3 years agoHelpfull: Yes(0) No(0)

CTET Other Question

Q. A rhombus has diagonals of length 8 cm and 6 cm. Find its perimeter.

Option
(1) 18 cm
(2) 20 cm
(3) 24 cm
(4) 28 cm Q. When faced with word problems, Rajan usually asks ‘‘Should I add or subtract ?’’ ‘‘Should I multiply or divide ?’’. Such questions suggest

Option
(1) Rajan seeks opportunities to disturb the class
(2) Rajan has problems in comprehending language
(3) Rajan lacks understanding of number operations
(4) Rajan cannot add and multiply