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The price of an item x increases by ₹ 10 every year and an item y decreases by ₹ 15 every year. If in 2018, the price of x is ₹ 50 and y is ₹ 90, then which item will be costlier in the year 2020.
Concept: undefined >> undefined
Match the statements in Column A and Column B
| S.No. | Column A | Column B |
| 1. | For any two integers 72 and 108, 72 + 108 is also an integer. | (a) Distributive property of multiplication over addition. |
| 2. | For any three integers 68, 25 and 99 68 × (25 + 99) = (68 × 25) + (68 × 99) |
(b) Multiplicative identity |
| 3. | 0 + (−138) = (−138) = (−138) + 0 | (c) Commutative property under |
| 4. | For any two integers (−5) and 10 (−5) × 10 = 10 × (−5) |
(d) Closed under addition. |
| 5. | 1 × (−1098) = (–1098) = (–1098) × 1 | (e) Additive identity. |
Concept: undefined >> undefined
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If the letters in the English alphabets A to M represent the number from 1 to 13 respectively and N represents 0 and the letters O to Z correspond from −1 to −12, find the sum of integers for the names given below.
For example,
MATH → Sum → 13 + 1 – 6 + 8 = 16
YOUR NAME
Concept: undefined >> undefined
If the letters in the English alphabets A to M represent the number from 1 to 13 respectively and N represents 0 and the letters O to Z correspond from −1 to −12, find the sum of integers for the names given below.
For example,
MATH → Sum → 13 + 1 – 6 + 8 = 16
SUCCESS
Concept: undefined >> undefined
From a water tank 100 litres of water is used every day. After 10 days there is 2000 litres of water in the tank. How much water was there in the tank before 10 days?
Concept: undefined >> undefined
A dog is climbing down into a well to drink water. In each jump, it goes down 4 steps. The water level is in 20th step. How many jumps does the dog take to reach the water level?
Concept: undefined >> undefined
Kannan has a fruit shop. He sells 1 dozen bananas at a loss of ₹ 2 each because it may get rotten next day. What is his loss?
Concept: undefined >> undefined
A submarine was situated at 650 feet below the sea level. If it descends 200 feet, what is its new position?
Concept: undefined >> undefined
In a magic square given below each row, column and diagonal should have the same sum. Find the values of x, y, and z
| 1 | −10 | x |
| y | −3 | −2 |
| −6 | 4 | z |
Concept: undefined >> undefined
Construct the following angle using ruler and compass only
60°
Concept: undefined >> undefined
Construct the following angle using ruler and compass only
120°
Concept: undefined >> undefined
Construct the following angle using ruler and compass only
30°
Concept: undefined >> undefined
Construct the following angle using ruler and compass only
90°
Concept: undefined >> undefined
Construct the following angle using ruler and compass only
45°
Concept: undefined >> undefined
Construct the following angle using ruler and compass only
150°
Concept: undefined >> undefined
Construct the following angle using ruler and compass only
135°
Concept: undefined >> undefined
State whether the two triangles are congruent or not. Justify your answer
Concept: undefined >> undefined
To conclude the congruency of triangles, mark the required information in the following figure with reference to the given congruency criterion
Concept: undefined >> undefined
For the given pair of triangles state the criterion that can be used to determine the congruency?
Concept: undefined >> undefined
Construct a triangle ABC with given conditions.
AB = 7 cm, AC = 6.5 cm and ∠A = 120°
Concept: undefined >> undefined
