JEE Main Important Physics formulas
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The table of 420 is a mathematical concept that refers to the multiplication table for the number 420. This means that the table lists the results of multiplying 420 by every whole number from 1 to 10 or more. The symbol of multiplication (×) like 420 \times1 , 420 \times2 etc. The multiplication tables are taught to students to help them learn and understand the basic principles of multiplication.
Times table basically represents that when a number is added to itself the number of times equal to the number we intend to multiply it to, the repeated addition yields the same result as multiplication. It is shown below in the table.
420 × 1 = 420 | 420 |
420 × 2 = 840 | 420+420=840 |
420 × 3 = 1260 | 420+420+420=1260 |
420 × 4 = 1680 | 420+420+420+420=1680 |
420 × 5 = 2100 | 420+420+420+420+420=2100 |
420 × 6 = 2520 | 420+420+420+420+420+420=2520 |
420 × 7 = 2940 | 420+420+420+420+420+420+420=2940 |
420 × 8 = 3360 | 420+420+420+420+420+420+420+420=3360 |
420 × 9 = 3780 | 420+420+420+420+420+420+420+420+420=3780 |
420 × 10 = 4200 | 420+420+420+420+420+420+420+420+420+420=4200 |
Here is the detailed multiplication table of 420 up to 20 numbers.
420 × 1 | 420 |
420 × 2 | 840 |
420 × 3 | 1260 |
420 × 4 | 1680 |
420 × 5 | 2100 |
420 × 6 | 2520 |
420 × 7 | 2940 |
420 × 8 | 3360 |
420 × 9 | 3780 |
420 × 10 | 4200 |
420 × 11 | 4620 |
420 × 12 | 5040 |
420 × 13 | 5460 |
420 × 14 | 5880 |
420 × 15 | 6300 |
420 × 16 | 6720 |
420 × 17 | 7140 |
420 × 18 | 7560 |
420 × 19 | 7980 |
420 × 20 | 8400 |
Q. Find out the answer to 420 \times11
Ans: If you look at the multiplication table of 420-row number 11, you can see that the answer is 4620.
420 \times11 = 4620
Q. Find out the answer to (420 \times4) + (420 \times7)
Ans: Looking at rows 4 and 7 of the multiplication table, we can find that
420 \times4 = 1680
420 \times7 = 2940
The answer to (420 \times4) + (420 \times7) = 4620
Q. If a person drives 420 miles every day, how many miles did he drive in 16 days?
Ans: Adding the number “420” sixteen times will give us the answer to this question. But it is easier to use the multiplication table of 420 to find the answer.
From row number 16, 420 \times16 = 6720
Q. What should be multiplied by 420 to get 2520?
Ans: From row number 6 of the table, it can be found that 420 \times6 = 2520
Q. Find the value of ‘y’ in the following equation:
420*y+ 5460 = 7980
Ans: The given equation is:
420*y+ 5460 = 7980
Subtracting 5460 from both sides of the equation gives
420*y = 7980 - 5460
420*y = 2520
To find the value of ‘y’, check the table of 420 and find out the number that when multiplied with 420 yields 2520.
From the sixth row of the table, 420 \times6 = 2520
So, y=6.
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