Mathematics Olympiad Class-7 Test Prep-9

Test Preparation on Mathematics Olympiad Class-7 Test Prep-9

1.

1. How many times does the number 3 occur in unit’s place for numbers ranging from 1 to 100?

120
211
310
419

Numbers ranging from 1 to 100, number ‘3’ occurs in unit’s place in following numbers:
3, 13, 23, 33, 43, 53, 63, 73, 83, 93

2.

In a certain code language NUBBINESS is written as BBEINNSSU and DARJEELING is written as ADEEGIJLNR then how will SIGNATURE be written in that code language?

1SINAGTURE
2AEGINRSTU
3AEGISTUNR
4AEGINRUST

All letters are arranged in ascending order in each word.

3.

January 12, 1979 was Friday. What among the following days will be January 12, 1981?

1Sunday
2Monday
3Tuesday
4Wednesday

12 January 1979 – Friday
12 January 1980 - Saturday
12 January 1981 – Monday

4.

Era walks 6 km towards north and then she turns towards right and walks 8 km. Again she turns towards right and walks 2 km. Now she turns back and walks 4 km. How far is she from her starting point?

110.33 km.
211.31 km.
323.12 km.
425.45 km

5.

Two angles of a triangle measure 90° and 30°. The measure of the third angle is

190°
230°
360°
4120°

Third angle = 180° – (90° + 30°) = 60°.

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