International Maths Olympiad Forum By SOF Olympiad Trainer - Page 16

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Reyansh Garg from Lotus Valley International School, Noida Extension

Subject :IMO Class : Class 6

Sakush bought 2 shirts costing ₹ 725.25 each and a pair of trouser costing ₹ 999.50. Find the total amount spent by him.

A₹ 3449.50
B₹ 2450
C₹ 1724.75
DNone of these

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from ,

Subject :IMO Class : Class 1

Mini had some hairclips as shown here. Eight of them got lost. How many hairclips were left with her?

A14
B10
C16
D12

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Samarth from Central school , Chennai

Subject :IMO Class : Class 7

Subtract (4a - 2b + 3c) from the sum of (a - 2b), (3a - 4b + c) and (5a - 2b + 3c).

A4a + 6b - c
B5a - 6b + c
C3a - 2b + 4c
D3a + 2b - 4c

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Samarth from Central school , Chennai

Subject :IMO Class : Class 7

The ratio between the present ages of M and N is 5 : 3. The ratio between M's age 4 years ago and N's age after 4 years is 1 : 1. What is the ratio between M's age after 4 years and N's age 4 years ago?

A2 : 1
B1 : 3
C4 : 1
D3 : 1

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Samarth from Central school , Chennai

Subject :IMO Class : Class 7

In the given figure, ABC is a triangle in which BC is produced to D. If ∠A : ∠B : ∠C = 3 : 2 : 1, and AC ⊥ CE, then find ∠ECD.

A30°
B45°
C60°
D72°

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Samarth from Central school , Chennai

Subject :IMO Class : Class 7

If ΔPQR and ΔMQR are on the same base QR, PQ = MR and PR = MQ in the given figure, then which of the following gives a congruence relationship?

AΔPQR ≅ ΔMQR
BΔPQR ≅ ΔRQM
CΔPQR ≅ ΔMRQ
DΔPQR ≅ ΔQRM