The sum of all possible values of a, for which the 4-digit number 547a is divisible by 3, is
7
15
10
13
B.
15
The value of a should be decided in such a way that the sum of the digits is divided by 3 completely.
:. 547 a = 5 + 4 + 7 + a = Number divisible by 3 = 16 + a [It should be divided by 3 completely]
⇒ a = 2, 5, 8 = 2 + 5 + 8 [Sum of values of a]
= 15
Abhi is twice as old as his daughter. Five years ago, his age was four times his daughter's age. If the present age of the daughter is x yr, then
A sum of Rs. 6250 at 8% per annum, compounded annually, after 2 yr amounts to
Rs 7165.60
Rs 7872.60
Rs 7581.40
Rs 7727.40
The angles of a quadrilateral are in the ratio 2 : 3 : 5 : 8. The sum of the supplement of the largest angle and the complement of the smallest angle is
500
800
600
700
If one angle ofa triangle is 110°, then the angle between the bisectors of the other two angles measures
900
1450
1000
1100
Some students of your class are repeatedly not able to do well in mathematics examinations and tests. As a teacher you would
give more tests for practice
explain the consequences of not doing well
diagnose the causes and take steps for
remediation
make them sit with high achievers
In an inclusive Mathematics classroom, what would be your strategy for addressing the needs of visually challenged learners?
Send the learners to a special educator
Design alternate teaching-learning and assessment methods
Offer them another subject in lieu of Mathematics
Pair them with high scorers in Mathematics
Which of the following assessment strategies can be used to assess learner's interest in and attitude to Mathematics?
Checklist, Portfolio, Paper-pencil test
Oral test, Paper-pencil test, Class participation
Checklist, Portfolio, Project, Class participation
Portfolio, Project, Paper-pencil test