4 12 60 420 ? 41580

Find the HCF of 120, 320 and 420.

Mean deviation of 390, 400, 400, 410, 410, 420, 420, 430, 430, 440, 440, 450 through median is

Find the HCF of 420 and 154.

Find the HCF of 420 and 1782.

Write the median class of the following distribution: Classes: 0-10 10-20 20-30 30-40 40-50 50-60 60-70 Frequency: 4 4 8 10 12 8 4

Write the median class of the following distribution: Classes: 0-10 10-20 20-30 30-40 40-50 50-60 60-70 Frequency: 4 4 8 10 12 8 4

The mode of data 1, 3, 12, 10, 8, 4, 5, 4, 3, 2, 1, 4 is 60 div k . Find the value of k

If the sales tax on a purchase with Rs. 60 is Rs. 4.20. what will be the sales tax on the purchase worth Rs. 150?

If the sales tax on a purchase worth Rs 60 is Rs 4.20. What will be the sales tax on the purchase worth of Rs 150?

The HCF and LCM of two numbers are 12 and 420 respectively. Then the number of such pairs is: