Explanation

To find the price of 7 tube lights, first, calculate the cost of one tube light. Asad bought 12 tube lights for Rs. 6900.

Cost per tube light = Total cost / Number of tube lights

= 6900 / 12

= 575

Now, calculate the cost of 7 tube lights:

Cost of 7 tube lights = Cost per tube light * Number of tube lights

= 575 * 7

= 4025

Explanation

Calculating the Total Bill

1. Sandwiches: 3 × 250 = Rs. 750

2. Cold drinks: 2 × 180 = Rs. 360

3. Coffee: Rs. 210

4. Total food cost: 750 + 360 + 210 = Rs. 1320

5. Tax: Rs. 112

6. Total bill: 1320 + 112 = Rs. 1432

Change Calculation

Amount paid: Rs. 5000

Change = 5000 - 1432 = Rs. 3568

Explanation

Factors are numbers that divide 16 exactly with no remainder.

16 ÷ 1 = 16, ÷2 = 8, ÷4 = 4, ÷8 = 2, ÷16 = 1.

Explanation

75+80+85+x​/4​=80⇒x=80.

Explanation

Original question:

= 9/2/81/8

= 9/2 x 8/81

= 4/9

ND-31-8--2023

Explanation

Explanation

Find a common denominator (LCM of 2, 3, and 4 is 12):

1/2 = 6/12

2/3 = 8/12

3/4 = 9/12

Add them: 6/12 + 8/12 + 9/12 = 23/12.

Explanation

Let's calculate:

(+20) - (-5)

Subtracting a negative is the same as adding:

20 + 5 = 25

Explanation

Dividing 3.12 by 2.6 gives:

3.12 ÷ 2.6 = 1.2.

Explanation

The absolute value of a number represents its distance from zero on the number line, regardless of direction.

So, | -4 | = 4.