On April 11, the electric meter reading was 7591 kWh. The next month, the reading was 7787 kWh. How much electricity was consumed?
Last month, the electric meter reading was 7895 kWh. This month, the reading was 8868 kWh. If electricity costs ₱ 9.00 per kWh, how much will I pay?
Last month, the water meter reading was 875 m3. The following month, the reading was 902 m3. If water costs ₱14.95 per m3 on average, how much will I pay?